Unfortunately it won't do you much good.
1. Most of the vibes on big dubs come from the front end since they have the low pinion 30 and a relatively short front driveshaft. The 2wd with the 242 is worthless unless you can unlock your front end. Since they don't make a manual hub kit for WJ Dana 30's the only way you can rest your front shaft in 2wd is to swap in a front axle with manual hubs.
2. The 242's that come with V8 WJ's a a bit different than every other 242 (specifically the main shaft and tail housing). It's not possible to do a SYE (slip yoke eliminator) kit on a V8 WJ 242 case. You can do one on a I-6 WJ case but then you need to swap a lot of internal parts to make it work with the V8 tranny.
Every person I know that has a 8"+ lift on a WJ with stock axles hates the ride quality. The only way to dial everything in is to have a 2wd case (i.e. 242 or Atlas) and swap in a high pinion front axle and set your brackets up correctly for your lift height. To be completely safe you can alway throw a high pinion in the rear too. Unfortunately all this is $$$'s.
I will go on the record as saying it's absolutely impossible to dial in a WJ at 8" with stock axles. If you try and get a decent pinion angle out of your front end your caster ends up at like -5 degrees when it should really be like +5 to +7. If the axle is rotated just a hair from it's stock location the 8" coils will bow like muthas.
Trust me on this one. It's not worth it to ruin a WJ with an 8" lift unless you address all the potential issues. I opened a huge can of worms when I put mine up high, and it cost wayyyyy toooo much $'s to get everything dialed in. Stick with a 4" lift unless you want to start a money pit.
Mike
