5.03 truck 3.08 rearend towing 6000 lbs
I am planning on towing a 6000 lb. trailer 3000 miles over the Rockies three times. any one towing with a GM 1500 5.03 motor and a 3.08 rear-end how well will this set up tow?
Forum Discussion
According to the GM website, the max tow rating of the 3.08 axle is 7,300 lbs, while the 3.42 boosts it to 9,300. Methinks you'd be OK on the flat, but the Rockies will sap your power quickly as you go higher and higher. A formula I found gives the loss as "elevation X .03 X horsepower" to determine the actual loss of about 106 horsepower. Back in '84 in a Ford station wagon with a 351 engine I couldn't make the summit of Trail Ridge Road and had to turn around and take a 200 mile detour. Hope this helps. Camp on!
