Thanks Nick! Me too! I'll check them out.
Thanks David. There are 27K miles on it. You probably can't see it from the picture but running your fingernail in the race shows that it is actually scored. The thrust bearing as well, although less so. I wouldn't expect heavy wear at 27K, and because both carrier and thrust bearings were scored, it led me to the debris theory, even though it wasn't run long under those conditions. I was pretty particular about the adjustment last time (in post 73), but who knows.
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New bearings:
I had a nearby Mercedes/Porsche repair shop press the new races on the differential (and the 1 / 2 slider hub). There was one shim on the opposite side of the bolt side that's pictured that I needed to ensure was put back:
With the new bearings in place, it was time to set the pre-load. The specification for new bearings is 3 to 7 pounds of force measured on a force gauge. I set mine at the lower end... 3 pounds :
I used the correct tool borrowed from Nick to adjust the pre-load:
Set and locked (I used a new o-ring):
Thrust Bearing:
I installed a new SNR thrust bearing ( FC 10893 ) on the secondary shaft. This doesn't have to be pressed on. It included a new spacer that goes between the races. The old one is on the table and the new one is installed:
Breather:
In this round, I finally found a new gearbox Breather (103047) at DeLoreanGo. For a flexible plastic piece, this looked pristine and pliable. Mine was cracked and mostly missing. Trial fitted:
Installed: