I purchased a ’68 Camaro basket case along with a pile of parts including what appears to be a 10-bolt rear-end that was not under the car. How do I identify this as either an 8.2-inch or perhaps an 8.5-inch 10-bolt? I’ve heard those later 10-bolts are stronger, but I don’t know much about them. Thanks.
Jeff Smith: When Chevrolet built the first Camaros in 1967, they were already in production of both 10- and 12-bolt rear-end housings. The 10-bolt was used in all the low performance applications. This assembly used an 8.2-inch ring gear diameter and 28-spline axles for Camaros, Chevelles, Impalas and even the early Chevy II’s. The 12-bolt was the performance axle assembly reserved for high output small-block and all the big block cars employing a larger 8.875-inch diameter ring gear and 30-spline axles. These two rear axle combinations continued from 1965 through 1970 even with the coming of the second generation Camaro in 1970.
Then in 1971, GM corporate decided they didn’t need two different axle housings so they merged the 10-bolt with the 12-bolt. The new corporate 10-bolt started with a medium, 8.5-inch ring gear diameter but retained the 12-bolt’s pinion shaft diameter of 1.625-inches to give it strength. As with all GM Salisbury rear axle assemblies, the number of bolts, in this case 10, refers to both the ring gear bolt count and the number of bolts retaining the rear cover. While many believe that the later corporate 10-bolt is as weak as the earlier 8.2, this is not the case. We know a Super Street drag racer who continues to this day running a mid-8-second, second generation Camaro that uses a near-stock configured 8.5-inch 10-bolt. So that should indicate that this rear-end assembly is more than durable enough for a very strong street car.
So let’s look at how to identify your 10-bolt. Since the housing is bare, with no gears or components, let’s first look at the housing itself. First, we’ll assume that it is a 10-bolt with leaf spring mounts welded to the housing. That identifies it at least as potentially intended for a Camaro or a last generation (1972-75) Nova. So the first thing you can do is to measure the distance between the centerline of both leaf spring perches. If the housing measures 45 3/8-inch between the centerlines of the leaf spring perches, then this is a GM corporate 8.5-inch 10-bolt for a second generation Camaro. If, on the other hand, the rear-end measures only 42 7/16-inches, then we have to do some additional investigating. The reason for this is that the early 8.2-inch 10-bolts for the 1968-69 Camaros were this width, but this is also the spec of a later corporate 8.5-inch 10-bolt out of a 1972-75 Nova. This is a somewhat common swap for early Camaros when a 12-bolt is out of the budget range. You can add strength by bolting in this corporate 8.5-inch 10-bolt.
So let’s assume that the 10-bolt you have has the narrower 42 7/16-inch leaf spring centerline spec. First, look at the casting number of the center section. If it is an early 8.2-inch 10-bolt Camaro housing, the casting number will be 3894859NF. For the 1972-75 Camaro style model 8.5-inch 10-bolt casting numbers we’ve found a 410409N and a 410408N. These differ based on the gear ratio. That may be the same number used in Novas, but we’re not clear on that.
Another clue to the rear-end’s heritage is located on the passenger side tube as code stamps in the tube itself. There are literally hundreds of these codes for the three different 10-bolt rear-end housings we’re discussing here, so it’s beyond the scope of this answer to list all of them. But to give you an example, if the axle housing were an early Camaro 8.2 10-bolt, a “PA” stamp in the leading edge of the passenger side axle tube would represent a 3.08:1 rear gear. So you might be able to track down your rear-end housing using this code. A year or so ago, a friend asked for help with a similar problem. He had 10-bolt of unknown origin and needed to verify what it was. We measured the housing width and also the center-center distance of the leaf springs and then ran the code. The code was a 2PYG number which we deciphered as an 8.5-inch 10-bolt with a 3.42:1 gear and posi-traction from a 1975 Camaro. I have a 10-bolt stamped “GZ”, which identifies it as a 2.73:1 open, 8.5-inch rear-end that came out of a 1972 Camaro. So with a little investigating (and a Sherlock Holmes hat), you should be able to determine the exact origins of your housing.
What rear end came stock in 74 k20?
I have 10 bolt in a 1962 gmc truck the truck had 305 v6 how do I tell what rear ended is in it
About How much power can a 10 bolt with a mini spool handle? I am putting about 450 hp to the rear wheels at this time. Do I need to worry about this rear-end or should I upgrade to a 12 bolt with a full spool?
Mike, I don’t have any experience with mini-spools but perhaps the bigger question is how you intend to use the car this mini-spool is in. If this is strictly a drag car, I would update to the 12-bolt and a full dedicated spool. If it is used on the street, spools are not a good idea because turning corners requires the inner tire to travel a shorter distance. With a spool, this drastically increases the twisting motion imparted to the inboard axle. This will eventually fail the axle or the splines into the spool. The other problem with a mini-spool is that the load is now concentrated on the cross-pin. Eventually this will elongate the hole in the carrier. So if you use a mini-spool, pay close attention to the mounting points for the pin and the pin itself. I’ve seen situations where the pin elongated the hole and then could not be removed. To get the rear apart requires torching the pin!
Good information, I pulled a 10 bolt with 3:55 limited slip from my ’66 GTO and raced it in my ’67 GTO for years with no problems. But I didn’t run the big slicks and the tracks didn’t have as much bite as today. I recommend calculating the overall torque, plus considering the cars weight, trans & gearing. Somewhere I once heard you could go by the “ears” on the case at the 5 & 7 o’clock position. Not sure how accurate that is? I have a ’69 firebird 350 V8 & a ’81 trans am turbo 301 V8 both auto trans, how much difference are these 10 bolts compared to a ’67 GTO other than maybe overall width?
The BOP 10 bolt which should have been in a 66 and 67 GTO is an 8.2 and as long as you don’t have any traction such as street tires on the street will usually hang together. If you put sticky tires on it and put it on a drag strip it will fail miserably.Immediately. The 69 firebird will probably have the same. If the axles are held in by the pressed on bearings it’s a weak BOP 8.2. The 81 Trans Am should have an 8.5 10 bolt. on the housing bottom rear. There should be a slight flat spot on each side which will be obvious when comparing it to the GTO housing. This rear end is a lot stouter and will take the most abuse right under a 12 bolt as far as reliability on the strip with slicks.
I have a rear diff with JV G295 1 G
I cannot get this specifically identified.
Any ideas would be appreciated.
I have a 10 bolt 8.2 or 8.5 inch rear. From what I am told it is from a 1972 Chevy Caprice. It has a 11 inch rounded cover with bolt spacing from bottom bolt to next bolt about 3 1/4 inches. It has 2 square lugs on bottom of casting. I need to know the gear ratio and the code stamped on the front side passenger axial tube is KC G201 1 4 . This unit is used in my all custom truck I have built but I need a taller gear some where to lower my high way RPM’s. Any help would be much appreciated.
The KC code identifies it as a 1974 rear axle assembly with a 3.08:1 rear gear ratio. You didn’t identify the number of bolts on the cover. It could be a 10- or 12-bolt. We will assume it is a 10-bolt – but that makes it a plenty strong 8.5-inch ring gear diameter – not the 8.2-inch. There is only one ratio taller than what you already have – a 2.73:1. Another way to reduce your highway rpm would be to go to a taller rear tire – or to use an overdrive automatic transmission like the 700-R4 or the 200-4R.
I have a 65 Chevy pick up truck, but not sure of the rear end that’s in it. There is an 8 then underneath if it has CFD. To the left there is a picture of a clock that reads 10 o clock. Does anyone know what kind of rear end I have!
Thanks in advance,
I am pulling my hair out trying to identify my rear ratio. I don’t see any stamps between Chunk and drum. On the chunk, iread GM19 on one side and N3894859 on the other. This is in my 67 Nova2, but doubt its the one that came with the car. Please help me here.
Can try this trick. Tape a piece of string to the drive shaft and remember the location of the taped end. Rotate the back tire(s) one full revolution. Count the number of “winds” of the string, including any partial wind ups and that is your ratio. I.e. if you have three and half revolutions of the driveshaft for one revolution of the tire, you have 3:50 to 1 ratio, etc.
I have a 1968 Chevelle Malibu 327 , automatic 350 transmission and a 10 bolt rear end, where do I find the numbers to indicate my gear ratios?
Pull the rear cover and look at ring gear. It will be stamped along with some other numbers. Divide the larger number by the lower number and that will be your ratio.
hi jeff I have a 10 bolt rear 8.5 it has disc brakes with leaf spring mounts like on a camero it measures 42.7/16 between the springs centers it also has a flat flange 4 bolt the tube number is meg72811 and the casting number is 1249618 b it has 2.56 gear ratio I can’t find anything about what it came out of. it has 11 inch rotors with big calipers thanks for any info
Just would like some opinions on this, I recently bought a 1 owner 72 El Camino custom the owner ordered it for racing only, he ordered it with no ac, no power brakes, 4 speed close ration Saginaw and posi-traction 10 bolt 8.5, the axle code on passenger side housing is G I C 080 1W, decoding the vin number tells me this is a 3.36.1 ratio and can handle up to 1000 hp to the rear wheels ?
I have a 1970 nova originally a 307 3 spd with a ten bolt rear 308 gears. How many spline and 8.2 or 8.5 ?
Don’t worry about the ambiguous future, just work hard for the sake of clarity
I have a 72 Monte Carlo and Built the motor a little. The axle code says it is a 273:1 Open. The cover is 10 bolt, has a raised section on the left side of it and the housing at 5 and 7 have pointed small lugs not the square ones. The info I get is it should be 8.2 but the description says 7.5 or 7.6. what you think because I would like to put 373:1 in it
Tony, from my research it would be a 8.2-inch 10-bolt. The Monte Carlos did not get the corporate 8.5 until 1973. To my knowledge, GM did not use a 7.5 or 7.6 housing in those cars. If you are considering a limited slip, you will need to step up to a 3-series gear ratio because I don’t think anyone offers a limited slip differential for the 2-series gears. Finding a 8.2 factory limited slip for a 2-series gear might be very difficult.
We just purchased a chev impala 2015 Body style: LTZ 4 door sedan w/2LZ the engine is a 3.6L V6. I have been reading that there was a 9th and 10 generation to this vehicle in 2015. How do I tell which generation I have. Not all accessories are compatible with both. The paperwork shows no indication of the generation. I have looked up the vin hoping to find out more but have run into a dead end. Thanks in advance Jeff any help you can give is appreciated.
I have a 10 bolt rear with bolt in axles for my 1970 camaro, It has the 2 lugs on the bottom of the diff so I believe its a 8.5 with the cover sticking out for the ring gear. It has 4:10 Richmond gears. I found the numbers on it and can you tell me more about what it came out of? Axel tube=PXG71151 on the center part of the diff it has D201(or a 7) and where the drivers side tube is welded to the center part it has 1253. Thanks Jeff.
I have a gm axle with the stenciled code pj g91931 and a casting no of 1254333. It is currently under a 1979 model camaro and it has apparently been modified and I would like to know what it originally was put in. It is a 2 in front of the pj g91931.
Hi This is Jim
I have a Buick rear end one of the tubes there are some numbers SD B109 2 . THE CASE 1235197. It appears to me 71-72 8.5 . I think it shows a 308 posi . It has( A )on it three different spots and one X , The cover has numbers on it also 1234496. The ribs on the side or parallel. The cover has two notches in it. Could not find a lot about the rear end especially the SD
See what you can find
it’s a 10 bolt rear end
THANKS JIM G
Hi, I have a quick question. I have a 1968 Pontiac Lemans, 350HO, 4-speed, appears to be “very” original. However, it has a 12 bolt rear end. Did any of the Pontiac 350 HO’s come from the factory with a 12 bolt rear end ?
trying to find out the rear end gear ratio of an 1995 chevy s-10 vin # 1gccs1441s8259904 or what year s-10 would have a 308 or 273 rear end !
Al, please call the Summit Racing technical department as they may have the answer you’re looking for.
Hi I was hoping you could help me identify what 10 bolt diff I have in my 67 Camaro for me. it is a posi 10 bolt diff with 3:73 gear set. Has this number near the diff center 1254383 and
PZ g82722 is on the passenger tube and Gm 22 on it as well and is 55.11” from inside to inside of brake backing plate
Is a second gen Camaro 8.5 the same length of a grand national 8.5 rear end
numbers on 3 rd member a IN THIS CONFIGURATION
ON THE 3RD MEMBER COVER 2-05-36
ON THE AXLE HOUSING 4 H Y C 260 2
THIS COULD B A 6
ALL THIS IS ON A 10 BOLT, 8.5 GM DISC BRAKE REAR AXLE
I AM TRYING TO FIND OUT THE YR TO ORDER ROTORS AND CALIPERS
INFO FROM JUNK YD SAYS PULLED IN 1990 AND NUMBERS THAT SAY 66
ANY HELP WOULD BE APPRECIATED THANKS
HOPEFULLY U CAN HELP ME TKS
Bought 50 Chevy truck rear end changed. Looks like a 10 bolt 8.5 the stamp number on passenger side on front of axle is PDC K154 2.
Help can’t find out what it is.
I have a 1970 Camaro. It has the 8.2″ 10 Bolt rear end.
Quite frankly its frustrating tSummit do not show this option when ordering parts. They only list the 8.5″ 10 Bolt rear end and the 12 bolt.
What does someone have to do to get Summit to sell them a rear disc brake conversion for a 1970 Camaro with 8.2″ rear end??? Do I look it up as a 1969?
FYI I am positive its an 8.2″ as its already been rebuilt with axle’s and gear with parts from a competitor and they recognized its 8.2″ factory in the 70.
The brakes are the same, 10 bolt, 8.5 or 8.2, or a 12 bolt, all same bolt pattern on backing plate, which goes away with going disk.
I have a 1956 Chevy pick with supposedly a 1972 El Camino differential. It is a 10 bolt 8.5 with tube stamp ACC 213 1. Can you verify the differential and tell me what the gear ratio is?
I have a 1965 chevy truck that has had a different rear end put under it and I would like to know what it is. The numbers on the tag are
I know the 2.41 is the ratio and it’s a 10 bolt but it doesn’t have c clips
i have a gm rear end #14030352 n about 1985 s10 it has 26 splines. what can you tell me about this rear end, is it a standard gm rear end. all i can find are 28 splines.with out question what i have is a 26 spline. where can i find a new one. thanks for any help. warren
What vehicles did you find the limited slip 28 spline 8.5 carriers in
I HAVE A 8.5 REARED IN A 1949 OLDS. Trying to find what it may have came out of. Casting #1253471 Axle tube looks to be ABC 7006 1. Please help
I am not new to working on cars but I am new to working on my 1968 Camaro I bought. It has a 8.2 rear end and I can not find anywhere if it is Posi … limited slip. I need to know so I can add the additive or not. I feel like I’m quoting My Cousin Vinnie
Jack it up at the center section and turn one of the tires if the other side turns the same direction it is a posi. If it turns the opposite direction it is an open differential.
My Dad’s ’84 Silverado C10 has a 10-Bolt 8.5. We replaced the original 305 with a 350 and the 350 Trans with a 700R4. To order the proper kit to adapt his mechanical Speedometer to the 700R4 we needed the Gear-Ratio of his rear-end. The axle code is BN3-G088. Can you tell me what the Gear-Ratio is for the BN Code ?…or where to find it ?
I have a rear end stamped GM9 on one side of the housing and N 3894859 on the other. The passenger axle is BA09 22.
What can you tell me about this?
I have I be!have a have a 1970 or around that time frame. The axle measures with TBE brake drums on it at 61-5/16″ flange to flange. The axle has standings on the right side front of the axle tube which is corroded seeing it is from pa. However I can read XB P. Could you help me identify what it came out of please. It is all original never opened up and really in good condition considering like I said its !I’ve was spe mmm t in Pa. I believe it’s a 8.2 but unsure.
Thank you for any I formation you can share with me.
I have a 1972 El Camino with a 12 bolt rear end. Is one side of the differential longer than the other. It keeps skuffing the passenger side outer side of my tires. The driver side has clearence and before l replace the rear fenders l want to make sure the diff. is situated properly. Thanks
George – the rear axle is not to blame. This is a very common situation where the body is not square over the frame. I own several Chevelles and nearly every one of them is skewed in this fashion where the inside of the passenger side wheelwell is closer to the outside sidewall of the tire. This adds more clearance on the outside of the driver side. The fix is to loosen all the body mounts – which is a major job – and then attempt to shift the body to the right by roughly 1/4-inch. This is much more difficult than it sounds mainly because loosening the body mounts may not be possible if they are rusted in place, which is likely. Often what happens is that the body mount nuts that are encapsulated in the body will break free, then you have to cut large holes in the body to access, remove, and weld new ones in place. It’s just something you may have to live with because removing the body bolts may not be possible
i am looking at what i believe is a 10 bolt 8.5″ rear with the numbers 14055251 on the axle tube, unable to determine if it is a posi.
I have a 1969 camaro with axle stamped JA G 313 1. 3:42 gears non posi What did it originally come in dont think it came in my 69 thanks Greg
No luck decoding
i have a 1995 gm truck 10 bolt 8.5 rear axle, i’d rather not take it apart. i have no vin# from the truck or rpo codes. the stamping on the axle tube reads kzu k 267 1 . could you decifer this for me all i want is the gear ratio. thanks
Unfortunately my data codes only go to 1975 so I can’t deciper this one – but look up the common gear ratio for those trucks online – you shoudl be able tot find some information
i need to know what code should be on a 1970 malibu 10 bolt rear end with 336 ratio and eaton posi built in osahwa canada, i know the engine came from kansas i am trying to put this car back exactly like it came thanks in advance
What rear end is this and how doi find all internal parts including endcaps db1116c i bought just housing and need all parts
Any help identifing rear end need parts db1116c including endcaps
Any help identifing rear end need pa
rts db1116c including endcaps i believe its of of 66 impala its an8.2 but my axels have to be 1.6 and od bearing is2.5 any help aprecieated where can i find parts im in colo
I bought a what I was told is a 2nd gen. Camaro 3.08 rear end assy. The spider gears are worn so I would like to locate parts and repair. The casting number on the rear end center section is #F2931s. 1234495n is the number on the center section that holds the spider gears and ring gears.There are also these other numbers on that piece – F525 & GM 45. Can you help to identify this rear end so I can locat the correct parts needed?
I got a 1978 Camaro with a 10 bolt with the 8.5 in it. I got a posi out of a 10 bolt with 8.2. Will the 8.2 posi fit in my 8.5 housing ?
Unfortunately no, it will not. The designation of 8.2 is the ring gear diameter, so the 8.2 10-bolt posi will not work in an 8.5-inch 10-bolt housing.
I believe I have a 1971 Nova rear end with casting numbers 3969340NF and GM76. It also has some other stamped numbers GJ W348 1. Not sure about it whether is posi or not. Question is what fluid can I fill with to insure not to damage? Recently sandblasted and primered so I want to refill with new fluid. I can send pics if I have an email or phone.
Gb g260 2
Can you decipher this. It’s supposed to be
10 bolt 8.5 posi with 3:73 gears
Also on it
I just bought this rear the guy didn’t know what it come off. I found this ( JA G094 2 ) stamp on left tube and this (15 D23 ) on the center housing. Any info is greatly appreciated. Ben
I have a 76 Cadillac Seville. I believe its a GM8.5″ 10 bolt, open & 2.56:1 ratio. Ring gear is stamped:
“1 GM 3984822 16 41 7 75″ ; i think 41÷16=2.56 made July ’75. Has the heavy lugs at 5&7 o’clock. Process of elimination tells me it can’t be an 8.2 because they stopped making them, and the 8.625 wasn’t being made yet. The only piece of the puzzle that doesn’t fit is that the cover bolts are only 3.25” apart, indicative of an 8.2 somebody once said. But its a Caddy after all, out in left field LoL.
Axel here again…further inspection showed my spider gear cross pin bolt to accept a 5/16″ wrench (not 1/2″) which confirms my diff to be 8.5″, not 8.2″ . I believe the cover bolt spacing to be an irrelevant i.d. feature since aftermarket covers currently available will fit either 8.2 or 8.5 rears. I’m all done. Tx.
Hello I have two GM 8.5 inch 10 Bolts. The first is pulled from a 1975 firebird formula 400 with a limited slip carrier and 2.56 gear ratio. The second is pulled from a 1978 camaro Z28 with an open differential and 3.73 gears. I’ve noticed differences in the housings, the 75 has a larger set of reinforcement ribs across the rear of the center section and what seems to be a ventilation whole at center top of the center section. The 78 housing has no ventilation hole at the top of the center section and the brake line anchor bracket on the driver side of the axle tube with smaller reinforcement ribs at the center section. Which is the more desirable housing/stronger and which pinion yoke would be better to use 1310 or 3R
Trying to I’d this 8.2 10 bolt GM3833443N c clip axle. Was told it was from a 64 Chevy ll. Fits great in my 63. Wanting to buy new axle assembly (brgs,seals lugs). Without pulling axles to measure lengths and wasting drive time trying to figure out exactly what I have. Have only seen one other guys blog reference to this number from 10 years back with no responses. Thanks in advance
Just curious, if the 8.2” housing had a smaller diameter pinion than the 8.5” pinion, were the outside diameter of the pinion bearings different? If so, couldn’t you just measure the diameter of the pinion bearing seats in a bare housing to determine if it’s an 8.2 or 8.5 10 bolt?
Also, knowing it’s from a second gen camaro by measuring spring perch widths doesn’t guarantee it’s a 8.5. My 1970 1/2 camaro had the 8.2” 10 bolt in it from the factory. I swapped it to a later 8.5” 10 bolt with a factory posi for cheap.
I come from Germany and would be happy if someone could help me. On my 1976 Firebird, 350cui, automatic the original 8.5 inch 10 bolt rear axle is probably still installed. Unfortunately I can’t find any numbers that give me information about the ratio. I only found two marks. GM23 and 1249518. Can someone say what that means?
1966 Pontiac Starchief Executive
Looks like 8.2 BOP.from cover.
Code Say UD….
Wallace racing Says 66 big car.
2.73 gears is in as i carefully inspected all details on ring gear.
Bolts pattern is 5×5 like truck.
-is “UD” really stand for Dana 60 as i Read on internet and is it common to have 5×5 bolts pattern.
I bought mag wheels in a specialised tire shop and is system give 5×4.75″ unless its engine is 403ci. I have 389ci witch is standard Factory.
Fact is i changed the oil and the gasket was to small so i had to make other holes for on the spot cause the mr.gasket sealer was applied Everywhere. I went back to see UAP and he triple checked and part Num was good. I have the CPO codes sheet and #matchs UD. 64 miles on the car. Built July 66 on car tag.
PS -Im in Canada with an American car. Canadian Pontiac are not the same as they use Chevrolet Drive train. But you should know all about that. LoL
I have 2 8.5s one has a # on the tube housing that is 1254333 and on the pumkin housing there is a, A 168 it is 45 & 3/8 center to center with 2.41 gears
the other one has numbers on the pumkin N is on top of the lower # and it is 1 235542B & E214 it is 45 & 3/8 center to center
which one should I use
I could some help identifying a non stock rear end in my 56 Chev pickup
its 8.5 inch
L91 casting on front of diff
stamped TAB G349 1
needing an axle seal but can’t identify what year or make to tell parts guy
hubcaps seem to be off 69 to 70 Buick LeSabre
rims off 85 to 95 Safari van ?
thx for any help
I have a 1966 chevy 11 4 door with a 10 bolt rear differential but not sure what size 8.2 or 8.5 and need it is a one wheel turner not sure of the gear ratio and if I put I mini spool I. It will it handle 450 horses
The 71-76 nova 8.5″ rear axle is a nice upgrade for the first Gen camaro with a 8.2″ axle. The nova came with a 7.5″ or a 8.5″ axle. If you look at the 5 & 7 o’clock position they have a casting that you can tell the difference at a glance. The 7.5 has a fang like casting and the 8.5 is a triangle shape. Allot of the 8.2 are mono leaf springs and all the 8.5 are multi leaf springs. All of the nova 8.5 are 28 spline axles but later on gm started using 30 spine carrier in pickups, the reason this is useful is that if you put in a 30 spine carrier in the nova housing you can use 1st Gen camaro 12 bolt axles. You will need to machine down the C-clip button to get it to work. This trick will work on 2nd Gen camaro 8.5 as a 12 bolt was an option in the 1970 model. The only difference between the 10 & 12 will then be the ring gear size. This might help some to get a cheaper / easier option than a 12 bolt.
Can you tell me what year my differential is 2PW G295 2
I have a 8.5 trying to put in my 69 chevelle…everything lines up but the upper bushing “ears” what I call them are farther apart then org 8.2 thats in it …can you tell me what this 8.5 came out of ?? AC K-072 IS STAMPED PASS Side thank you !!
Hi. I have a 1939 Chevy pickup that I bought about 1/2 done and the guy I bought it from thinks the rear end came out of a camaro…go figure. Anyway the rear end has a stamp on the passenger side that is spaced out P T G82381 and that is the only stamp I found so far. The cover is round and it is a 10 bolt but it has the cast-in protrusions at the five and seven o’clock positions but it also has the angled protrusion at the top of the cover. I can’t find that code anywhere. what do you think and how do I figure out what I have for a rear end? Thank you
I am unable to find the right information on my 8.5 inch 10 bolt differentials markings. I have a stamping of
2PJ 60819 1 as best I can read. Where can I find out how to read this stamping, I am baffled. I red a ton of articles but nothing seems to come close. Thanking in advance.
I have a 1969 ss 396 camaro. the guy i bought it from swears it is the original rear. the stamping on the rear on the front passenger side tube is RR101802 with E and L stamped under it . it is a 12 bolt rear. but what is the ratio? I have looked at all the codes but there is no RR codes. Im thinking it might be a BR 3:07 ratio. but the stamping is very clean clear RR. Can you help me?
Hi cousin bought a 67 Camaro with a 10 bolt but where the u-bolts go there is a flat on top of the tube I don’t think this is the original axle I have never seen one with a flat on top or one of the u-bolts go would you know what that might be from?
Can you help me with my front end on my 78 chevy 4wheel drive its a gm 10 bolt i need to know the gear ratio soi can match the truck AH c9 230 1 thank you for your time
RHA W337 2
HOW DO YOU REA THIS CODE ON REAREND HOUSEING
3790614 is the numbers on the 10 bolt I have an you tell me-more about this rearend
I believe I have a 10 bolt gen 1 8.2 rear end but the numbers stamped on the axle are JW G160-2 and on the pumpkin is B252 or E252 the diff cover has like a Star Trek triangle as well on it.
Any idea because im looking to install disc brakes and re gear from 4:10 to 3:05 for my project truck 3100 with a Ls motor. Cam with no brakes.
I have a Chevy 10 bolt differential with 342 gears. has a casting number 1264886. I want change over to disk brakes. Can I find out the year and what it came out of?
I have a 1990 c10 with a corporate 8.5 rear. Is there a car axle that interchanges with this rear end as I already have car wheels . Low budget build