Results 1 to 11 of 11

Rear End Leaking

This is a discussion on Rear End Leaking within the Drivetrain forums, part of the LSx Technical Help Section category; Hi guys, I got a rear end leak we think it is the pinion seal. Would it be oh k ...

  1. #1
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    Rear End Leaking

    Hi guys, I got a rear end leak we think it is the pinion seal. Would it be oh k to just remove the yoke and put the new seal in? then just replace the the same yoke in after the job is done? Are there any considerations with regards to the pinion crush sleeve? What is the torque for the yoke Nut? I have read the Faq on the rear end. So any other info would be great. Thanks.

  2. #2
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,998

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    With a hammer and chisel, mark the nut, pinion shaft and yoke in one line. That way everything will go back exactly where it was and you'll have the proper torque on the pinion bearings and crush sleeve. That being said I like to tighten the nut slightly past the lines I marked.
    The yoke should be reusable as long as its not scored. When in doubt, replace it.
    I also like to smear some silicone sealer along the outside of the metal shell of the seal and smear some thread sealer on the pinion splines.

    And after all of that its almost guaranteed to leak again with in 500 miles...

  3. #3
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    Oh wow thanks a bunch , I will try that on Friday. Are you serious that not matter what you do the pinion seal will just start leaking again? that is pretty shotty engineering...

  4. #4
    Member c5z28's Avatar
    Join Date
    Apr 2008
    Location
    Bay Area
    Posts
    8,120

    On your ass flashing
    my highbeams

    My memory sucks if you can even reuse the same crush sleeve I thought you can't go past 15lb (or is it ") I do know if you over tighten the crush sleeve you put in more play and you have to put a new one in.

  5. #5
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,998

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Technically you can't reuse a crush sleeve. In the real world, the method I described is the only economical solution and will work just fine. If you overtighten it then its gotta be replace. You can't just back the nut off if you overtighten it.

  6. #6
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    So if the crush sleeve is oh k and not in that bad of shape you can reuse it? When is it time to replace a crush sleeve? Also anyone know why my rear end would hop if i hit the gas half way in second gear? it is like when the car breaks loose in second it has really bad tire bounce.. Or whatever it is called.. Sorry for changing subjects.

  7. #7
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    Quote Originally Posted by FasFlex View Post
    So if the crush sleeve is oh k and not in that bad of shape you can reuse it? When is it time to replace a crush sleeve? Also anyone know why my rear end would hop if i hit the gas half way in second gear? it is like when the car breaks loose in second it has really bad tire bounce.. Or whatever it is called.. Sorry for changing subjects.
    Does it fell like it's shaking the drivers seat?

    It's called "wheel hop" and it may be due to your pinion angle. If your car is lowered you'll want to instal LCA relocation brackets, which compensate for pinion angle after lowering.

    WHEEL HOP is the single most destructive thing a rearend can experience!

    In any caes you might want to invest in a body mount adjustabe torque arm. This will allow you to adjust the pinion angle and (on better units) will have a drive shaft saftey loop.

  8. #8
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    Quote Originally Posted by 67CamaroRSSS View Post
    Does it fell like it's shaking the drivers seat?

    It's called "wheel hop" and it may be due to your pinion angle. If your car is lowered you'll want to instal LCA relocation brackets, which compensate for pinion angle after lowering.

    WHEEL HOP is the single most destructive thing a rearend can experience!

    In any caes you might want to invest in a body mount adjustabe torque arm. This will allow you to adjust the pinion angle and (on better units) will have a drive shaft saftey loop.
    Well it does not really feel like it is shaking the drivers seat.. Yeah Wheel hop.. I was tired last night sorry for the miss communication. So I should just be able to get a kit? It just makes noise when I hit the gas hard in second gear. And then if i keep on it hard in third a little bit.. I wont be doing that anymore till I get it fixed. Thanks for the post though I will totally look into it.

  9. #9
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    Sorry for the double post.. But I finished the rear end, it all worked out nicely I will take it out tomorrow on the road, And see how everything feels. Just gotta wait and hope the leak stays away I guess haha. It would seem my plates in my axles are gone.. also we found out haha. Seems like I am gonna have to fix those soon too. Any advice on that one? The plates I am talking about are the ones for the Posi.. We had it up and in gear and we could stop one wheel easily.. and the other one would just spin twice as fast... if that makes sense to anyone.

  10. #10
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    Quote Originally Posted by FasFlex View Post
    Sorry for the double post.. But I finished the rear end, it all worked out nicely I will take it out tomorrow on the road, And see how everything feels. Just gotta wait and hope the leak stays away I guess haha. It would seem my plates in my axles are gone.. also we found out haha. Seems like I am gonna have to fix those soon too. Any advice on that one? The plates I am talking about are the ones for the Posi.. We had it up and in gear and we could stop one wheel easily.. and the other one would just spin twice as fast... if that makes sense to anyone.
    In other words, your posi ain't...

    Had it happen. I switched from an Auburn to a Torsen because of that.

    So, which do one you have?

  11. #11
    Junior Member FasFlex's Avatar
    Join Date
    Mar 2010
    Location
    Saskatoon, Saskatchewan
    Posts
    15

    White With Blue decals
    1999 30th Trans Am #0922

    I am not sure what i have.. I know i have 3.43 gears and the car is totally stock nothing done to it at all. So whatever she has out of the factory.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Question: rear seals leaking
    By JayTA98 in forum Drivetrain
    Replies: 4
    Last Post: 05-03-2011, 06:43 PM
  2. Help: Water leaking into the driver's rear floorpan
    By Thewilldog in forum General Help
    Replies: 33
    Last Post: 11-29-2010, 04:23 PM
  3. Rear end cover leaking
    By johnnybz28 in forum Drivetrain
    Replies: 11
    Last Post: 06-23-2010, 10:11 AM
  4. rear end Diff is leaking
    By voodoochi1d in forum Drivetrain
    Replies: 0
    Last Post: 08-28-2007, 02:02 PM
  5. Leaking fuel from rear of car! HELP!
    By RyansWS6 in forum General Help
    Replies: 5
    Last Post: 02-16-2007, 07:08 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •