Originally Posted by 84ZJ7
well i had the parts so i thought it would be a cheaper way to upgrade,
First and worst mistake of many swaps gone wrong. Never assume that just because you have something already it's the best candidate for a swap. Converting a CJ7 to run the ZJ coil sprung suspension would not be a simple task. In fact it would rate about a 10 on my "things I would not want to attempt-o-meter." Suspension geometry is not for the shadetree mechanic.
The best modification you could do to your CJ7 is install one-piece axles in your rear AMC20 and call it good. The rest of the drivetrain is plenty stout enough and if it runs good I wouldn't even consider swapping the 304. You should probably consider a re-gear at some point as well, since your stock ratio is probably 2.73 or if you're lucky 3.31, neither of which is anywhere near low enough for your 35" tires.
So are you going to change your username if you don't swap these driveline parts?