Cummins12V98 wrote:
Significantly?
3.42’s in 5th VS 4.10’s in 6th both @ 1,750 @ 60???
Although the OVERALL gearing in your example (5th gear w/3.42 vs. 6th gear w/4.10 = 1,750 @ 60mph) is more or less equal, the driveline/torsional stress,
which is determined by the rear end ratio, is
NOT equal.
Again, there is a reason why, a Ram Cummins DRW, with a 4.10 or 3.73 rear end will have a higher tow capacity than the same truck with a 3.42 rear end. Simply downshifting a Ram Cummins DRW with a 3.42 rearend will NOT increase the tow capacity, or decrease driveline/torsional stress. Only changing the rear end ratio can accomplish this.
