hello,

sorry if this has already been asked. i have a 2004 screw 4x4, 5.4l, and 3.55 gears. my plans are to add 33 inch tires, xcal 3, and a scan gauge. i tow a 7x16 enclosed 5,000-6,000 pound trailer. my question is this: as long as i am happy with the power output w/ the xcal3 and i monitor my tranny temps w/ the scan gauge, am i going to kill my transmission (or anything else) by not regearing?

thanks

 

I don't think you'll damage your truck by not re-gearing,but you don't know what you're missing without 4.10's in it! Definately 2nd best mod. i did after troyer tunes!!!!

 

i know. i would definately like to regear but i just can't hardly bite the bullet and spend $1000-1500 to regear.

 

With a 5.4 and a tuner you'll be fine. Just add a good tranny cooler if you don't have one already.

 

doesn't my truck come with a tranny cooler? i'm pretty sure it has the stock towing package. is the stock one not very good. how hard is it to install a good tranny cooler?

thanks

 

regear it.