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Thread: question about the 8.6

  1. #1
    ff_jeff Guest

    question about the 8.6

    How do I know If I have an open diff, or a gov loc? I thought I had an open but wanna be sure cause a mini spool wont fit a gov loc. And thats the route I wanna go. Only 1 wheel spins usually, unless My driver side tire gets wet it never spins. Any body know how to tell apart without taking it apart?

  2. #2
    Join Date
    Nov 2006
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    Mesquite, TX
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    buy a true trac and be safe....
    2006 silverado SS....Clifford Jr...turbo coming soon
    1970 Chevelle ly6 swap....d1 coming soon

  3. #3
    Join Date
    Jan 2008
    Location
    Wasilla, AK
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    Look in your glove box at the RPO sticker. If you have a G80 code, you have the Gov-Loc. No G80 code means you have the open diff.
    2001 ECSB 4x4, 5.3, Radix, 3.0 pulley, VHP Trucker cam, 216/224 .551/.551 115 lsa, 1.8 Crane roller rockers, 4L65E, Yank SC3000, 3.73, Cal-Tracs, HPTuners.

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