I just today dropped the AX5 on my 87 MJ for the very same fix.
You will need a few days for this being that you're not a stellar mechanic, ,but neither am I so.....
- raise BOTH axles as evenly as possible...unless you like cleaning up fluid that leaks from your xfer case when you pull the rear shaft....this may be a good time to drain both trans & xfer case to replace fluids anyway.
- disco the slave line, open the bleeder first and drain the system
- remove shift console from interior and shifter handle from the trans (4 bolts)
- unplug the harness from the engine, remove speedo cable, unbolt the other doohickey on driver's side of the trans (speed sensor maybe)
- you will need a mess of universals and extensions to get at the upper trans bolts but I did it...hopefully they aren't in too tight...use 1/2 inch drive tools, you'll need the strength (5 trans bolts and one nut)
- support trans (jack or chain through shifter hole) and unbolt rubber mounting bracket at back of trans...4 bolts are hidden inside the trans crossmember, then unbolt the crossmember, 3 bolts per side (I broke one of em)
- i didnt need a trans jack to get it out, but it may be helpful. I used a chain, 4x4 block of wood and one large friend.
that's an afternoon's work right there...and where I am right now...I remember most of the bolt sizes, you'll need a full spectrum of american & metric sockets and open ends...post up if you need more help