later this year I'll be installing Mopar JK wrangler Rubicon dana 44 axles under a cherokee (for my uncle). the axles will be around 4400 for the pair, but they are all brand spankin' new parts and have 4.10 gears, disk brakes, and push-button selectable lockers front and rear. they are a couple inches wider than stock axles so you can run stock JK rims that are all over craiglist for cheap. TNT makes a truss for the front that contains all the needed brackets already lined up for installation in an MJ/XJ. just need to cut off the stock stuff and weld on the truss.