Just as the title states, will it work? I tried to do a search, but no luck with that year model, I can weld on the spring perches and use the springs on the cj, just wondering if any one had done it? I just blew the rear axle apart and have a cheap 84 cherokee I can get the axles out of
I believe that the front axle is a driver's side drop. And the rear will either be a Model 20 or Dana 44, I think they were Model 20s. Is you jeep an automatic or manual? The rear may or may not have an offset differential also. Take that into account.
1980 CJ 7--3" Black Diamond, 1" body, locked both ends, 4.56, 35x12.50x15 SS LTB, "family" cage
Are we talking little Cherokee or big Cherokee (84 is right around the period they switched.) Either way, it will be a driver's side drop (the later SJ's switched sides from the earlier ones, and don't have an offset rear axle at all, no matter what transfer case. I used to have an 82 SJ Cherokee.) If it's an XJ it's definitely a driver's side drop.
84 would be an XJ (small Cherokee), the last year of the fullsize was 83. This would be one of the most pointless and ill-advised axle swaps I could possibly think of. The front axle in the XJ would be completely wrong for a CJ, besides having the pumpkin on the wrong side, it has all the bracketry for coil springs which would have to be cut off. It also has a weak two-piece axle with vacuum disconnect that never worked correctly and would have to be fixed. It also has sealed unit-bearing hubs which are nearly impossible to convert to locking hubs (Warn made a kit once upon a time but it was over $1000). The rear axle of the XJ would be a Dana 35 and there is really not much good that can be said about them. I wouldn't even consider trying to put one under a CJ.
Just because the XJ axles are available to you doesn't make them a viable candidate for a swap. Narrow track AMC 20's are a dime a dozen, there are currently about 30 of them on Ebay and none of them is more than $300. Even to repair yours would probably be cheaper and easier than trying to swap. What do you mean by "blew it apart" exactly?