Results 1 to 10 of 10

Ford 9-inch Problems -- Need Help

This is a discussion on Ford 9-inch Problems -- Need Help within the Drivetrain forums, part of the LSx Technical Help Section category; I have a 9-inch Ford setup with Detroit Locker, 31 spline, and Richmond 4.11's. I've recently changed out the lube ...

  1. #1
    Junior Member midnitejam's Avatar
    Join Date
    Oct 2006
    Location
    Parma, Ohio
    Posts
    64

    Red
    1998 WS6

    Ford 9-inch Problems -- Need Help

    I have a 9-inch Ford setup with Detroit Locker, 31 spline, and Richmond 4.11's. I've recently changed out the lube for 85-140 weight. And now after the car is driven for about 10-15 miles, the rearend gets loud and clunky. It Feels as if my tires are square rather than round and it pops and snaps and rachets.

    Since I don't know anything about the detroit lockers, I'm wondering if the locker rearends need a lube additive? Does the Ford 9's require a special additive with the lube? Will adding an additive help my situation? What additive should I use?

    Thanks,
    midnitejam

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Oil too thick maybe??

    I run 75w-90 in my Moser 9" with the TruTrac.

  3. #3
    Junior Member midnitejam's Avatar
    Join Date
    Oct 2006
    Location
    Parma, Ohio
    Posts
    64

    Red
    1998 WS6

    Quote Originally Posted by Mr. Luos View Post
    Oil too thick maybe??

    I run 75w-90 in my Moser 9" with the TruTrac.

    Hi, Mr. Luos. Thanks for your time.

    I was wondering about your application in which you use the trutrac. What differentiates the trutrac from the detroit locker?

    Thanks again for your time.
    MJ

  4. #4
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    TruTrac is a limited slip.
    Locker has no slip to it.

  5. #5
    Senior Member slims00ls1z28's Avatar
    Join Date
    Apr 2007
    Location
    TN
    Posts
    1,212

    2005 GTO M6 Black
    2000 Z28 A4 Red

    The Lockers will do that. I just purchased the same set up you described and the guy that I bought it from (builds hundreds of them a month literally) told me it will do that and that it is normal with the locker. I'll call him tomorrow and get some more answers on the lube thing this guy knows his stuff.

  6. #6
    Junior Member midnitejam's Avatar
    Join Date
    Oct 2006
    Location
    Parma, Ohio
    Posts
    64

    Red
    1998 WS6

    Quote Originally Posted by slims00ls1z28 View Post
    The Lockers will do that. I just purchased the same set up you described and the guy that I bought it from (builds hundreds of them a month literally) told me it will do that and that it is normal with the locker. I'll call him tomorrow and get some more answers on the lube thing this guy knows his stuff.

    Thanks,
    Cheers - MJ

  7. #7
    Junior Member
    Join Date
    Apr 2007
    Location
    Blue Springs,Mo
    Posts
    13

    Black
    2002 Trans Am

    One thing that can cause a locker to "snap"(actually the differential locking and unlocking)while driving down the road is if your tires are not the same circumference. Usually a non-issue with radials, but it could happen. I've seen it numerous times on cars running drag and street/drag tires. I've also seen people use the wrong lube and it will cause it as well. Check with the manufacturer of the differential for thier recommendation.

  8. #8
    Senior Member slims00ls1z28's Avatar
    Join Date
    Apr 2007
    Location
    TN
    Posts
    1,212

    2005 GTO M6 Black
    2000 Z28 A4 Red

    I called my builder (sorry was busy couldnt get to it earlier) he said any 90 oil you can use. Synthetic or reg. NO additive lockers don't have clutches.

  9. #9
    Junior Member midnitejam's Avatar
    Join Date
    Oct 2006
    Location
    Parma, Ohio
    Posts
    64

    Red
    1998 WS6

    Thanks for the help, everyone. You've been great.

    MJ

  10. #10
    Evr sena bdgr killa snak? Roastem's Avatar
    Join Date
    Dec 2005
    Location
    Research Triangle Park, NC
    Age
    40
    Posts
    1,812

    Pewter
    '99 Z28 M6

    Quote Originally Posted by midnitejam View Post
    Thanks for the help, everyone. You've been great.

    MJ
    Anytime!

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 3
    Last Post: 11-20-2013, 03:45 PM
  2. Ford 9 inch.
    By JwMonE99 in forum Drivetrain
    Replies: 3
    Last Post: 10-18-2009, 10:33 PM
  3. Ford 9 inch for LS1
    By Soltakr in forum Drivetrain
    Replies: 1
    Last Post: 10-30-2006, 07:50 AM
  4. Ford 9 inch
    By Hodgesz28 in forum Parts For Sale / Trade
    Replies: 0
    Last Post: 10-12-2006, 03:17 PM
  5. Ford 9 inch almost NEW
    By Hodgesz28 in forum Parts For Sale / Trade
    Replies: 6
    Last Post: 10-03-2006, 11:25 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
  •