I had a pinion carrier with TRD 2way and 4.8 diff gears all put together by the guys below with new bearings, a solid crush spacer machined up and all aligned and torqued appropriately for $350 cash, they even delivered to my front door.
diff has been sweet.
Diffs2u
66 Slater Parade
Keilor East VIC 3033
(03) 9336 4438