What is this M5R2 part?

dthompson

Registered User
I am just finishing up rebuilding my M5R2 for the first time in my 89 SC. I am curious what this part was for... It is a rubber piece with internal splines located on the output shaft splines, where the yoke slips on. I do not see it in the service manual anywhere. Any ideas on what this is?

rubber bushing.jpg
 
It is a seal that was installed from the factory to keep fluid from leaking out the back before the driveshaft was installed. You can throw it away.
 
Thanks guys. I hope I don't have to take it out again anytime soon. That was a fair amount of work.
 
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