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tips for breaking in a new 9"

This is a discussion on tips for breaking in a new 9" within the Drivetrain forums, part of the LSx Technical Help Section category; I just had a 9" installed in my A4 LS1 SS with 3.89's and had a quick question as to ...

  1. #1
    Member william SS's Avatar
    Join Date
    Mar 2007
    Tulsa, OK

    2001 camaro SS

    tips for breaking in a new 9"

    I just had a 9" installed in my A4 LS1 SS with 3.89's and had a quick question as to how about I might go breaking it in. Are there any proper break in procedures for a 9 in?

    Could I take it to the track the night after it has been installed or is this too soon?

    Thanks for the input guys!

  2. #2
    2 SS's are better than 1 Jays00ss's Avatar
    Join Date
    Jun 2007
    Lathrop, Missouri

    NBM / Silver
    00 SS / 71 SS Elcamino

    I would recomend the same procedure as when breaking in any gears. Drive 15 minutes, Stop, wait at least an hour. Do that 3 times to heat Quench the gears. Then take it easy don't go over 60 mph for the first 500 miles and change your speed up. Then change your gear oil at 500 miles (I would suggest royal purple or red line 75w-90) then give her hell. Just my .02 worth, but do what ever the mfg recommends who you bought it from.
    2000 SS Camaro Heads, Large cam, Fast 90, 9"w/430's and locker, yada yada yada... you get the picture

    1971 SS ElCamino 402 Big Block 550HP

    2006 Silverado 2500HD 496 cubic inches of pure muscle

  3. #3
    CAMARO not Maro asshead! HASTINGSRJ's Avatar
    Join Date
    Jan 2001
    MASSHOLE in Jville NC

    00 SS Vert#0540/ 03 GMC

    +1 for that. Thats how I broke in my 12 bolt....and have had no problems at all....
    Last edited by HASTINGSRJ; 09-09-2007 at 03:05 AM.
    Black 00 SS M6, vert, #0540 414 C.I. iron block 501hp 448tq -slipping clutch
    old times 11.39@123 tuned by RPM

    DD 03 GMC Sierra, Durmax CCSB 2500, 17" XD's, 5" tubo back exhaust, AFE intake, EFI Live, DSP5, 3" body lift, tuned by Diesel Addiction 347hp 645tq

  4. #4
    Junior Member Redstaff's Avatar
    Join Date
    Jan 2007
    Vancouver B.C. Canada

    2001 Trans Am WS6

    Thumbs up Thanks

    I'm having a new Moser 12 bolt rear end installed on Tuesday. That is exactly what the shop owner recommends.

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