Well I found this. Are these the parts I need?
Yukon Master Overhaul Kit for Nissan Titan rear differential - YK NTITAN
I also found this stuff at Rock Auto, which seems to be cheaper, but I don't know which ones I need.
RockAuto Parts Catalog
I have a 2004 with big tow and off-road with the rear differential lock.
Yukon kit parts list [with my comments]
Included in this kit are carrier bearings and races[these could be used with a truetrac install. The ring gear is bolted to the carrier (or the TrueTrac which replaces oem carrier). This has nothing to do with pinion bearing noise]
, pinion bearings and races, pinion seal [these would replace the pinion bearings and hopefully solve the noise problem]
, complete shim kit[perhaps not part of the kit for the Titan because Titan uses threaded adjusters for the carrier bearings, and not shims as used in a standard Dana 44]
, ring gear bolts[the ring gear bolts could be used to bolt the ring gear to a TrueTrac]
, pinion nut[the service manual says to replace the pinion nut whenever it is removed]
, crush sleeve (if applicable)[The crush sleeve pertains to proper setting of the pinion via correct torque settings and measurement]
, oil baffles and slingers (if applicable)[I think these are N/A]
, Thread locking compound[used for ring gear bolts]
, marking compound with brush[used with dial indicator to set proper carrier bearing lash and check ring/pinion mesh]
, and gasket[perhaps N/A because the oem Titan diff cover used RTV sealant (e.g. Permatex Ultra Black) instead of a gasket]
Other parts that you may want in connection with a complete rear axle rebuild/ TrueTrac install are axle seals, axle bearing sets (Timken Set 10 - set = spacer + bearing + race) and snap rings (x2 to do both sides).
To install a TrueTrac in an e-locker rear end you also need to replace one axle shaft and swap the diff position sensor with a bolt.