XJ44 rear axle $800
Yukon 4.88s setup by Bob at Baystate Offroad and have about 35k miles on them with no issues.
Superior Evos (setup for 5x5.5 BP but can accept 5x4.5 stud pattern)
8.8 disc brakes
ruffstuff Diff cover (countersunk bolts and drainplug)
u-bolt style yoke
0.5" TNT u-bolt eliminators
powertrax no-slip
Only bad is it needs axle seals and has a SLIGHT noise on the highway due to overheated gearset (got water in them once but was out that night...just enough to cause a little extra wear on the gearset)
TNT 1.5" boomerang shackles $60
Front Dana 44 parts:
Yukon 4.88s - $50
3.91+ carrier - $20
Lockrite - $150
Steering (inverted-T, 1.5" OD x .250" wall DOM, good MOOG TREs) - $150
JKS trackbar with a JJ welded in place of the stock bushing - $40
Stock XJ pitman arm reamed to accept "1-ton" TRE - $20
Chevy/FSJ outers (non flattop) converted to 5x5.5 with new MOOG balljoints w/o lockouts or driveflanges (research if you don't know what this is) this includes knuckles, brakes, stub shafts, etc. - $80
Dodge flattop knuckles with all associated hardware except calipers (5x5.5 BP)- $100