Changing differential gears
WWould like to hear from those that have actually changed their rear-end ratios. Did you get any improvement? Was it worth it? Any pitfalls?
Forum Discussion
Geese...memories of my 1973 !!!
Dana 60 front, GM 14 bolt rear end.4.1’s, new-positive arched front leaf springs, 33/12.5x16.5 load range F, 45 gallon main tank, 2” dia full roll cage from windshield to rear wheel wells, Audi 5000 front buckets, etc etc
To the OP... for each GM change in diff ratio...begets approx 10% change in torque multiplication. Example...go two higher numeric...approx 20% more torque to the axles
So, I’d change them...some times...gain a bit more MPG while towing heavy, as the engine doesn’t work as hard
Dana 60 front, GM 14 bolt rear end.4.1’s, new-positive arched front leaf springs, 33/12.5x16.5 load range F, 45 gallon main tank, 2” dia full roll cage from windshield to rear wheel wells, Audi 5000 front buckets, etc etc
To the OP... for each GM change in diff ratio...begets approx 10% change in torque multiplication. Example...go two higher numeric...approx 20% more torque to the axles
So, I’d change them...some times...gain a bit more MPG while towing heavy, as the engine doesn’t work as hard
