40K?? That's some serious coin..

Gen 1V6 front diff will handle 35's...But you'll have to source another set of 4.88's if your donor diff is from a 4cyl.

Also if sticking with Gen 1 parts the v6manual CV's are a bit larger than auto on the diff side.

99 Gen 2.5, fixing blown head gasket
89 SWB- 33's, ARB Front locker, SR rear locker/axle, SR F brakes, winch, WST Offroad Armor all Around, 2.85 Aussie T-case Gears (SOLD)
Sold: (2) 95 SR's, 86 SWB, 90LWB, 91 LWB
-Can Change a timing belt in my sleep..