38\'s and what gears??? I recently purchased a 77 1 ton 4x4 60 in the front 14ff in the rear. It has 4.10's in it now. I am swapping these axles to my 90 k5. I will be running 38's with 6 sus. and 3 bod. I have a 350tbi in the truck with 700r4. People are telling me to keep the 4.10's and when my 700r4 goes put a th350 and 205 case in and my setup should be just right with the 4.10's. What I am wondering is if this sounds good enough or if I should go with 4.56's or if anyone runs this combo. I will also be running a detroit in the back and a powerloc in the front. Any help would be appreciated. Thanks.