Cummins12V98 wrote:
blofgren wrote:
Faststreak wrote:
I’m not very knowledgeable about this gear ratios just want the one that will get the best economy with my slide in camper and sometimes pulling a bass boat which isn’t very heavy compared to a fifth wheel. The dealer have lots of 410 on the ground none of the others. Still not sure which is best.
Personally I would go with 3.73 and be done with it. That is the only ratio GM offers with the Duramax; that says a lot. It is a good compromise of a good pulling truck and solo driver. I had 4.10 gears in my last 2 trucks and they were great pullers but not so good solo drivers. I realize 6 speed transmissions change this somewhat but you get the idea.
When you have towed with both come back and let us know what your real world experience says!
I have, the AISIN is the key to this debate. If my last truck had the AISIN I would still be towing with it even at 33-35k combined! That should say something.
I have to agree with Fish to a degree. IDK that I would go as far to say up to 29k with 3.42's. They have no problem getting started with the Aisin and have no problem running down the road but there is that in between that is not ideal and that is 2nd-3rd with immediate TC lock up. Up to 21-22k maybe but the 3.73's would be better for my 29k.
Yes, I have towed with all three (3.42 , 3.73 , 4.10) behind the Aisin.