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'88 4cyl 4x4 M50D-R1 locked up...


Shran

Junk Collector
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Ok, several weekends later I'm reassembling the tranny. It was the input shaft main bearing welded to the shaft. I've gotten all new bearings/races professionally pressed onto the various locations, put the tranny back together per the various manuals and diagrams I've collected, torqued the front bearing retainer on per the spec (nominally 18 lb-feet) and the tranny is so tight it won't rotate by hand... any ideas?
Smaller shim on the input bearing or front counter shaft bearing or both. I've had issues with that happening if I shim towards the "tight" side of spec... Against my knowledge of tapered bearings, I shim them on the loose side.
 



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