Gear Jammers: How Different Driveline Combinations Affect Your Gearing Selection
Back in the day, the common way to select rear end gears for a car was downright simple: In an automatic, whatever ratio was in the transmission, was in the […]
Mailbag: How to Identify GM Differential Carriers
Q: I have a 1970 El Camino with a 12-bolt differential and 4.11:1 ring and pinion. I’m not sure if it’s the original gear ratio, but I want to change […]