Originally Posted by byoungblood
I wouldn't bother going from 3.55 to 3.73, the difference isn't worth the expense.
I would have to agree with byoungblood on this. I just swapped to the yukon 4.10's .
The truck is low mileage (50k miles) and the engine is healthy but with the stock optioned 17's (265/70-17) it was only so so in acceleration.
A swap to BFG mud terrrain 33's really killed the acceleration. a SCT tuned by 5Star Tuning brought it back up some but honestly after all of the HiPo cars I have owned it was just too doggy on takeoff. If I hook up the camper & its even more pathetic. So I ruminated on it a bit and eventually settled on the 4.10's.
No matter how I calculated it the 3.73's were not going to make enough of a differenace. The 4.10's are a good enough balance between power for towing and still be in a reasonable RPM range for the highway that I could justify the expense.