Why 4.1 axle?
I tow an 8000 pound trailer with a GMC 2500 with 6.0l engine, 4 speed transmission, and 4.1 axle ratio. I rarely need 3rd gear on the highway; only on steep hills. For my next truck, why not get si...
Forum Discussion
Scooby,
The OP is not going to be cha going out gears etc as you are implying. His only thing he may be able to change, is axle ratio from the factory. Either 3.73 or 4.10. Everything else is the same. With 3.73, his overall low is around 24.5-1. With 4.10s, 27-1 overall low.
4.10 he has 10,800 ft lbs of torque hitting the pavement, with 3.73 9800 ft lbs. Any and all of the components speed by GM engineers should handle the torque etc produced by his motor, trans, rear gears etc.
He has around a 30-31% max grade at 20,000 lbs gcw with 3.73 gears before stalling out. With 4.10s around 33-35%. @ 60 mph, in DOD with 3.73, rpm ~1400, w 4.10rpm ~1600. Current setup @ 60 ~1800 rpm.
Marty
The OP is not going to be cha going out gears etc as you are implying. His only thing he may be able to change, is axle ratio from the factory. Either 3.73 or 4.10. Everything else is the same. With 3.73, his overall low is around 24.5-1. With 4.10s, 27-1 overall low.
4.10 he has 10,800 ft lbs of torque hitting the pavement, with 3.73 9800 ft lbs. Any and all of the components speed by GM engineers should handle the torque etc produced by his motor, trans, rear gears etc.
He has around a 30-31% max grade at 20,000 lbs gcw with 3.73 gears before stalling out. With 4.10s around 33-35%. @ 60 mph, in DOD with 3.73, rpm ~1400, w 4.10rpm ~1600. Current setup @ 60 ~1800 rpm.
Marty
