Tranny tail cone

[Doug'sL81]

Since I'm replacing u-joints and found a nice groove in the neck of the yolk that connects to the out put shaft. I decided to replace the rear seal and bushing, I found that I had a heck of a time getting to the rear seal. The cross member gets in the way and I can't easily access the seal, so I decided to take the tail cone off. That was a fun experience but I did get the tail cone un-bolted, however the same cross member won't let me take the tail cone off. Do I try to force the tail cone through or is there something else I need to do? Has someone come across this problem? Life would be much easier if I could get the dang thing off. Thanks for any help. BTW GM does not make that yoke anymore the closest replacement part from spicer has a shorter neck and cost $200.00 so I went to my machinist and he welded on some metal over the groove and turned it. It came out good as new and only cost me $40.00.

 

[DDLS3]

Doug

I have two manuals here and both show the tail cone removed to replace the seal. You might try setting a floor jack under the crossmember to support it and loosen the bolts on the cross memeber and drop it a bit to get the tail cone clear. Before you replace the yoke take it to the local bearing house and ask for a speedi-sleeve. This device slips over the damaged shaft and creates a new surface for the seal to ride against. I've used dozens on pump shafts and gear shafts with great success. It may even be available at the local NAPA.

 

[Scott81]

This is for a speedo gear change but it might help, if I remember correctly the crossmember has to come down to get the tail cone off. It's not hard to remove the crossmember, just use a block of wood on a jack to support the tranny then unbolt the crossmember, and you can use the jack to raise/lower the tranny when reinstalling the crossmember.

http://www.c3sharktank.com/tech2/speedo.html

 

[Doug'sL81]

THANKS!!

You guys are the best. I knew I'd find the answer here. Someday I hope to be able to share info to help others. Thanks again.

Doug