4wdParakeet wrote:
Go measure the rear axle tube diameter and that + perch height will be how much lift you get out of the SOA. As for the springs look for some that are the same dimensions as the MJ springs and build your own leaf packs. With some tuning you can get a leaf pack to flex and ride really nice. Make sure your shackle angle is at the proper position (approx 45*) and that will help the ride and flex. Also if you get a little stiffer spring that will help with axle wrap but not cure it.
Since I built the motor in my XJ I really wish I would have done that first. I built a 4.6 stroker. If you have somebody that is handy with motors you can build a stroker for the same cost as rebuilding a 4.0. But you have to find the parts, ie 4.2L crank and rods, mustang 24lb injectors and the rest of it is pretty much a standard rebuild. Just adding the crank and rods will turn a 4.0L to a 4.5 with about 200HP and 250Ft/lbs. I'm sitting at the 250Hp and 325Ft/lbs with .030 forged pistons, decked block, lunati cam and lifters (4.6L) If I were to do it again though I would build a 4.7 stroker. Costs the same for the .060 bore as the .030 bore.
My XJ has 4.5" of lift and 33x13.5x15 Toyos with open 3.55 gears and it will leave dual streaks about 20' long. I can eat just about any of the basic Japanese vehicles out there and gained a couple MPG's.
Something else to thing about before you get a the lift is with the right bumpstops and trimming you can fit a 35-36" tire on a 4.5" lift. Nice low COG and good diff. clearance with a tire that size.
Good luck and keep us posted.
Parakeet
you just made me do the same thing your icon does. to many big words lol. jk thanks for the info! very much appreciated