tranny

[Strokethis9]

ok i have a 2001 f350 lifted on 37s. i also have a predator chip and i keep it at the highest performance level which is 100hp and 200foot pounds. my tranny isn't broke but if i get on it once i'm moving at about 5 to 10 mph sometimes, not all the time, it will kinda rev up and then slams into gear. but it does accelerate but not that fast. the truck has 150000 miles on it and i got it lifted with the chip in june of 07 so i have not had the chip in that long but i still think that, that is the problem. please let me know what you think or if i am making any sence.

[Raul@Stealth Automotive]

sounds like the tranny to me... thats what mine started doing a few months after i added my engine mods... are you regeared for the 37" tires? cause if your not that extra stress of the larger tires will also play a role in breaking your tranny

[Strokethis9]

i thought about doin 456 gears but then i heard that yes it would take a lot of stress off my tranny but at the same time give worst fuel mileage. what i was going to do if the tranny is the problem is to just rebuilt it really strong but do you think that, that will still break after time.. left me know what you think because i don't know to much about the tranny or gears but from what i have heard

[Raul@Stealth Automotive]

if you still want fuel economy but regear go with 4.30... its what ill be putting on my own rig... and eventually no mater what you'll have to beef up the tranny... bigger lift, wheels, tires and engine mods equal broken tranny so my suggestion is do both rebuild the tranny and regear.... you'll actually get better fuel millage if you regear because it will take less power from the engine to get your rolling