the 4 door 10 has a factory 4.56 gear, 48re almost the same as the diesels, drive it right with a trailer and it will do fine, o ya and large brakes, get an sct tuner and lose the cats and it will really wake up, i know i have one.
Cheatham, Have you ever made a pass in your truck? I am curious of your before and after modifications.
I bought the truck eary this year and it had all the mods and bolt on one could ask for, Bassani headers true duals with Hooker Max flos dumped before rear axle, 02s are turned off, coil packs, SCT tuner with custom tune, throttle body lowering kit, i never had it to the strip and ive never driven another 10 to compare the difference but it is a fun truck to drive, very responsive and pulls hard, i did pull my car its about 2500lb and trailer is about 800lbs so it not a heavy load, i visit the vtcoa forum lots of good info there.