Jomani Posted February 18, 2019 Report Posted February 18, 2019 I wanted to see what shape the original differential out of my 47 Wd21 was in. Not planning to use it - just curious about the condition. When I pulled the cover, this dropped out. I am guessing it is the drive gear thrust pad. Is it possible someone backed off the adjustment screw thinking it was the drain plug and it fell out? Also, the differential case has these nasty gouges all the way around. Contact with the pinion gear at some point? Anyone see anything like this before? Quote
MBF Posted February 19, 2019 Report Posted February 19, 2019 I think you're right that it is the thrust pad. What does your pinion look like? I would think it would have to be pretty chewed up to leave those grooves, but I don't understand how it could make contact with the carrier unless the yoke nut was loose. I'd be interested to see what you find. Quote
Merle Coggins Posted February 19, 2019 Report Posted February 19, 2019 I also believe you are right about the thrust adjustment. And I would suspect a loose, or failed, pinion bearing caused the gouges on the differential case. If they aren't loose now, it may have been a previous failure that was corrected. Quote
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