I would not, regardless of engine and transmission. I have a 4.0 with an AX-15, stock would have 3.07 gearing, I have 3.55. With a cold air intake, high flow header and exhaust, bored TB, HO engine with upgraded intake, volvo injectors, and some other performance upgrades, I have trouble pulling a 1000LBS trailer up a hill, and the truck is rated for 5000LBS stock. I plan on getting 4.10 sometime, but 4.56 would probably benefit me more. That's with 33s.