3.31 gears at 40,000 lbs gross.
Just to give a bit of a feel for how different gear ratios would behave while towing I locked out 10 then 10th and 9th then added them back again while travelling on a straight stretch of road w...
Forum Discussion
ShinerBock wrote:
They say a picture is worth a 1000 words! That's EXACTLY my point earlier:
RoyJ wrote:
That means the ONLY difference in stress between a 3.31 and 4.30 truck is the transmission output torque, or driveshaft torque (again, T-in must = T-out). Because on the same hill, a 4.30 truck may be in 6th and the 3.31 truck in 5th.
Your only stress increase with taller gearing is driveshaft torque.
If anything else is burning up - that's drive abuse. Which granted, happens often with today's fleet drivers. But we're talking RV owners here.
