Post Tagged with: "gear ratio"

mustang 8.8 rear end gear

Mailbag: Choosing a Ring-and-Pinion for a Fox-Body Mustang

Q: I have a 1991 Ford Mustang LX couple with a bone-stock 302. I’ve always thought about getting an 8.8-inch ring and pinion set for my Ford, but I’m having […]


Mailbag: Optimizing Gear Ratio for RPM at Cruising Speeds

Q: My 1974 Chevy Nova has 4.11 gears, but I’m interested in changing them. I’ll be taking a long trip soon and I’d like to cruise at around 2,000 rpm […]

1967 pontiac gto - mecum

Mailbag: Improving ET and 60-ft. Times in a 455-Powered 1967 Pontiac GTO

Q: My 1967 GTO has a 455 Pontiac powerplant with Edelbrock 87cc heads, .030 over Ross pistons, Total Seal rings, Eagle rods, a Crower cam (int./exh. duration 248°/252° @ .050″, […]

TCI six-speed transmission kit

Ask Away! with Jeff Smith: Explaining 6-, 8-, and 10-Speed Automatic Transmission Gearing

I see where Summit Racing lists a TCI transmission that was originally a 4L80E – but they list it as a six-speed transmission. I’ve heard a little about this—did they […]

transmission gears

Manual Transmission Gear Ratio Charts for GM/Chevy Vehicles

Because different transmission gear ratios can greatly affect a drivetrain combination, it’s important for anyone performing a transmission swap to know the gear ratios of the gearboxes you might be […]

Vacuum modulator adjustment on transmission - Photo by Street Rod Life

Mailbag: Adjusting a TH-350 Transmission From Race Setup to Street Use

Q: I recently replaced the 305 engine and TH-200 transmission in my 1985 Monte Carlo for a 350 with a mild cam and a TH-350 transmission. My question is about […]

Q&A / Tech

Ask Away! with Jeff Smith: Optimizing Gear Ratio for Overdrive at Cruising Speeds

I have a ’72 Chevelle and I am planning for either a 700R4 or maybe a 4L60E. The car right now has a mild big-block 454 and I’m looking to […]

dana spicer gear for 2015 ford mustang SEMA
SEMA 2016

Video: Dana Spicer Introduces New Driveshafts and Gears for 2015 Ford Mustang at SEMA

LAS VEGAS, NV — Aftermarket parts maker Dana Spicer used the 2016 SEMA Show to introduce a variety of new products, including drivetrain components for the 2015 Ford Mustang. Summit […]

Q&A / Tech

Mailbag: Tire Size, Gear Ratio & Stall Speed–and How They Relate

Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. This week, we’re nailing down the right combination of tire size, gear ratio, and torque converter […]

Tech / Tech Articles

Garbled Transmission: What Do Shift Kits Do? Do I Need a Tranny Cooler? (and Other Transmission FAQs)

The transmission is the little brother of the powertrain. It doesn’t often get the same respect or attention as the engine—until it starts acting up. You’ll most likely see dozens […]