I put a 4.0 in then SOA'd it. Then the problems began...... I have blown so many half shafts on the front taht I swapped them for Fiat ones. Finally got the rear propshaft (driveshaft) made from scratch. All new brakelines. I have tourque steer like you wouldn't believe. On the gas and it shoots left, off the gas and it shoots right. I have to make up some ladder things for the rear axle. Gearbox has no computer, I have to work out a semi auto system. I am scared to drive it over 75mph. I love it tho' :hardcore:
Someone once made a rotating switch for manual control of those transmissions. I can't remember what it was called but you may want to look it up. What do you plan to do about your bump steer? Sounds like a perfect excuse for that quad shock steering stabilizer you've been wanting.
No, it's not bump steer, it's the lack of traction bar thingys. the rear axle is twisting. Strangely enough, the one thing I haven't got that I though I would have, is steering issues. I renewed every joint up front and the steerings been fine.
Here is a good link for a track bar. http://pirate4x4.com/tech/billavista/Anti_wrap_bar/antiwrapbar.htm