I AM JUST FINISHING MY AXLE SWAP, YOU WILL NEED A 99 UP REAR END WITH ABS RINGS, UPPER & LOWER CONTROL ARMS, ROTORS, CALIPERS,QUAD SHOCK MOUNTS, CATBACK, DRIVESHAFT, AND A FEW THINGS I DID KNOW OF IS YOU WILL NEED ABS/SPEED SENSOR CABLE, AND HANGER BRACKETS TO HOLD UP CATBACK. HOPE THIS HELPS...