Quote:
Originally posted by gwsullivan
I used to tow my 25' Safari with a 5.3 litre with 3:73 rear gears and it worked quite well in the flat lands but in the mountains I experienced two problems. Lack of power at the higher altitudes and the rearend became quite hot when pulling long hills. |
When I owned my 1500 Siverado I was told that the rear axle GM uses in the 1/2 ton trucks runs quite hot. For that reason I installed a Mag-Hytec differential cover on that truck (nearly doubles the fluid capacity and aids cooling) and had no trouble.
However, my Tahoe has a panhard rod running right behind the rear axle cover which precludes a differential cover with more capacity. I plan to replace my 3.73 gears with 4.10s before I purchase my trailer and may fabricate some method to pump differential fluid through a cooler.