Results 1 to 7 of 7

Rear main seal?

This is a discussion on Rear main seal? within the General Help forums, part of the LSx Technical Help Section category; Hey guys I am doing a clutch swap and my tranny is out at the moment I figure why not ...

  1. #1
    Formulatastic yellowv's Avatar
    Join Date
    Dec 2006
    Location
    S. Florida
    Age
    39
    Posts
    1,271

    Red
    98 Formula /93 Z28

    Rear main seal?

    Hey guys I am doing a clutch swap and my tranny is out at the moment I figure why not replace the RMS being that the car has 145,000 miles. I do have a very small oil leak already which could be the seal or the pan gasket. I know the seal pops right out, but do you need the special tool to install the new one or can you do it without?
    __________________

  2. #2
    Member
    Join Date
    Aug 2005
    Location
    tx
    Age
    37
    Posts
    108

    pewter
    99 trans am ws6

    i know there is a tool to install them but i dont know if it is needed for the ls1. im guesing it will probably be alot easier of you do use the tool. see if autozone will rent it out

  3. #3
    Life in the Fast lane sunsetorangess's Avatar
    Join Date
    Aug 2005
    Location
    Bragg NC
    Posts
    2,835

    Met. Sunset Orange
    01 SS

    J 41479 Crankshaft Rear Oil Seal Installer
    Thats the seal installer that you will need. I would ensure thats where the leak is coming from and its not the cover or something simple like your pressure sending unit.
    Im not insulting your ability to install the seal but i would strongly recommend you use the seal installer, you can pick them up off ebay for like 20 bucks. If you try using a big socket or mallet you risk flipping the lip and it will leak like never befor. It may work and it may not, i wouldnt want to risk having to pull everything apart again.
    Check with your local dealer and see if you can "borrow" one..
    J
    2001 SS, Its not the car its the Driver that matters....

  4. #4
    Formulatastic yellowv's Avatar
    Join Date
    Dec 2006
    Location
    S. Florida
    Age
    39
    Posts
    1,271

    Red
    98 Formula /93 Z28

    Actually I am pretty positive the seal is not leaking. I guess I will leave well enough alone. I was going to do it as a precautionary measure, but I don't want to create a problem.

  5. #5
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    I replaced my rear main without the tool and everything turned out just fine. You can use the crankshaft to center the seal and get it pretty damn close. You also have to make sure they are installed facing the correct direction.
    My car had the rear main replaced under warranty and GM installed it backwards It leaked like crazy.

    I decided to yank the tranny and do it myself. Only to find out they also had the rear engine cover off (that holds the rear main seal) and reused the original gasket. It was squished out in 2 places and also leaking like crazy.

    It's really not hard to do at all. While you have your tranny out I'd give it a good look over and decide from there.

  6. #6
    Formulatastic yellowv's Avatar
    Join Date
    Dec 2006
    Location
    S. Florida
    Age
    39
    Posts
    1,271

    Red
    98 Formula /93 Z28

    Well the tranny has been out for over 24 hours (waiting on the clutch kit) and I was under there to pop out the pilot bearing a little bit ago. everything is bone dry. The tiny leak I have definately is not coming from anywhere back there. Must be the pan. Not really worried about it. It has been like that the whole 2 1/2 years I've had the car and it doesn't even leak enough to drip off the pan.

  7. #7
    Retired NOT tired SteveC's Avatar
    Join Date
    Jul 2005
    Location
    Poway, Ca
    Posts
    1,126

    SOM
    2001 Z28 (Sara)

    LS1 rear mains are known to sweat, however at that milage, as long as you have the tranny out, it would be a good idea to replace it.

    SteveC

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Rear Main seal
    By miguelr1988 in forum General Help
    Replies: 1
    Last Post: 09-20-2012, 11:49 AM
  2. if i need a new rear main seal...
    By wileyCoyote in forum General Help
    Replies: 6
    Last Post: 01-13-2011, 08:24 AM
  3. rear main seal help
    By Leeroyws6 in forum External Engine
    Replies: 5
    Last Post: 10-28-2010, 09:01 AM
  4. Question: Rear Main Seal
    By SMWS6TA in forum General Help
    Replies: 10
    Last Post: 08-01-2010, 07:07 AM
  5. rear main seal
    By 00z28bubba in forum General Help
    Replies: 7
    Last Post: 11-20-2008, 11:35 PM

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
  •