rear axle ratio change better towing capacity
Hi, In great need of help. We have bought 2 years ago a 2007 silverado 1500 crew cab standard box 4.8l V8 with rear axle ratio of 3.23. Last year my parents gave us their dutchmen four winds trailer...
Forum Discussion
Lowering the axle ratio lowers the OVERALL ratio, in every gear the transmission has. This means that torque is multiplied by a greater factor in EVERY gear in the transmission, not just in the one transmission gear you dropped into.
Doesn't matter if you have a 3 speed, 4 speed, 5 speed, 6 speed, or 10 speed transmission. Lowering the axle ratio means the WHOLE transmission ratio set is suitable for towing, not just the bottom 2 or 3 or 4 gears.
I wouldn't want to spend $30K, $40K or more on a new truck with a fancy 6-speed tranny and a high axle ratio, just to end up with a truck that, effectively, has only a 3-speed when towing, because the top 3 gears are useless, because the axle ratio, and therefore the overall ratio, in the top 3 gears is too high. That would really suck! :(
Doesn't matter if you have a 3 speed, 4 speed, 5 speed, 6 speed, or 10 speed transmission. Lowering the axle ratio means the WHOLE transmission ratio set is suitable for towing, not just the bottom 2 or 3 or 4 gears.
I wouldn't want to spend $30K, $40K or more on a new truck with a fancy 6-speed tranny and a high axle ratio, just to end up with a truck that, effectively, has only a 3-speed when towing, because the top 3 gears are useless, because the axle ratio, and therefore the overall ratio, in the top 3 gears is too high. That would really suck! :(
