ChevelleForum.net

Go Back   Chevrolet Chevelle Forums > Chevrolet Chevelle Garage > Chevelle Suspension & Chassis

Reply
 
Thread Tools Display Modes
  #1  
Old 10-20-2013, 11:36 AM
oldguy64malibu oldguy64malibu is offline
Member
 
Join Date: Dec 2012
Posts: 83
Default Replacing pinion seal

Am in the process of replacing a leaking pinion seal on my 64 Malibu. With the car jacked up and the wheels off the ground and trans in neutral I can rotate the drive shaft maybe a 1/4 inch either way without the tires rotating. I disconnected the driveshaft from the differential and then the input flange nut (much fun). After using a puller I was able to remove the flange and found I could move the pinion shaft side to side approximately 1/8 inch. This doesn't seem right but other than a slight oil leak from the seal the differential doesn't make any strange noises. Any suggestions on what to do next as far as the play goes ? Please don't tell me to install a Ford 9" rearend in it. Thank you again. As usual, everybody is a big help.
Harvey
Reply With Quote
  #2  
Old 10-21-2013, 09:55 AM
mestorod70 mestorod70 is offline
Senior Member
 
Join Date: Jun 2013
Location: honah lee in a cave by the sea
Posts: 446
Default

If your pinion is moving that much...im thinking your seal wont last to long.
It may be time for a rebuild.
I just did mine with richmond 373 gears and the richmond rebuild kit.
Its not that hard of a job...if i can do it anyone can.
Reply With Quote
  #3  
Old 10-21-2013, 12:11 PM
oldguy64malibu oldguy64malibu is offline
Member
 
Join Date: Dec 2012
Posts: 83
Default Pinion Seal Replacement

.I am thinking the same as you. The seal will probably leak due to the play in the pinion shaft. Who did you buy the rebuild from and how much was it ?
Thanks.
Reply With Quote
  #4  
Old 10-22-2013, 10:26 AM
mestorod70 mestorod70 is offline
Senior Member
 
Join Date: Jun 2013
Location: honah lee in a cave by the sea
Posts: 446
Default

I tend to use jegs for most things
due to the no hastle return policy
Reply With Quote
  #5  
Old 10-22-2013, 11:28 AM
hkalin's Avatar
hkalin hkalin is offline
Senior Member
 
Join Date: Nov 2012
Location: Connecticut
Posts: 118
Default

Did you notice the side play before you removed the pinion shaft yoke and nut. Don't forget now with the yoke and nut removed your not preloading the tapered bearings. There will be some rotational play in the driveshaft. My 12 Bolt is out of the car right now and I just checked the rotation play seems to be about 1/8" total.

Last edited by hkalin; 10-22-2013 at 11:43 AM.
Reply With Quote
  #6  
Old 10-22-2013, 12:16 PM
oldguy64malibu oldguy64malibu is offline
Member
 
Join Date: Dec 2012
Posts: 83
Default

Thank you hkalin. I am going to reinstall the yoke with new seal and nut and see if the ply is reduced. If so, I will probably go with it as is. What I would really like is to find another 1964 rear end and have it overhauled along with a change over to disc brakes. So many ideas and so little money, no fun being poor. Thanks again.
Reply With Quote
  #7  
Old 10-23-2013, 09:21 AM
hkalin's Avatar
hkalin hkalin is offline
Senior Member
 
Join Date: Nov 2012
Location: Connecticut
Posts: 118
Default

Hope I'm not too late but I think they put a sealant inside of the spline in the yoke so no oil seeps past it.
Reply With Quote
  #8  
Old 10-31-2013, 04:55 AM
oldguy64malibu oldguy64malibu is offline
Member
 
Join Date: Dec 2012
Posts: 83
Default Pinion Seal/Yoke/Sealant

I haven't installed yoke yet because I got the wrong size jam nut. The nut I got was for a 12 bolt and has a bigger outside diameter. Same thread size but you can't get a socket into the yoke well. I have a 10 bolt and must have called everybody on the East coast looking for a new nut. I finally found on the net a company that had them and was a pleasure to deal with. They probably lost money processing the order for a $5.00 part. They are , National Driveline, 877-910-2244. I'm going to put a thin coating of sealant on the splines, great idea and thank you.
Harvey
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:39 AM.



Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Audiokarma.org