i'm planing for next winters mods. i want to do somthing like the WW3.

mabey not cut the back half off if i don't need to but i need 2 t-cases. i'm also looking for some more flex but tire rub is a big issue on my tracker. if i put a stock sammy case behind my 5 speed with 5.12 gears will it be ok on the street?
i need 2 case for 2 resones.
1: is that i need some reduction for street use.
2: is that i was on the rocks a few weeks ago and it sucked bad cuz i was geared way too high.
and any other ideas are so vary welcome. plz anything else just say it.
thanks, stu