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Thread: 5 speed Grand Marquis rear goes boom

  1. 04-29-2013, 12:13 PM #1
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    5 speed Grand Marquis rear goes boom

    So after the CAM Marauder meet Sundy, (which was great by the way), I went home and wanted to play with my other car and I decided that I would practice launching it, in hopes to take it to the track one day. Well as the title says....

    What do I do at this point? What do I need so this doesn't happen again? The car has a T-45 trans, 11 inch center force clutch, 8.8 rear with posi-trac 28 spline axles and 4.10s. Stock drive shaft with mustang yoke.

    Check out the video and see picture below.

    http://www.youtube.com/watch?v=U3WaS...HLpXIg&index=1

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  2. 04-29-2013, 12:18 PM #2
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    Hit the deck! That's a shame...but now you can get a better one!
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  3. 04-29-2013, 12:21 PM #3
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    Where's Biscuits!?

    Sorry to hear man.

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  4. 04-29-2013, 12:26 PM #4
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    For you guys with these stick cars putting a ton of power to the rearend I would look really look at putting a 9 inch rear end in. It should be bulletproof and you wont have to worry about this again. I know they are pricey ($2000-3000) but do it once and you are good to go.


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  5. 04-29-2013, 12:30 PM #5
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    Well that's the thing, its a stock motor with just a few bolt ons, under drives, exhaust, and cone filter. That's it!
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  6. 04-29-2013, 12:31 PM #6
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    Quote Originally Posted by DOOM View Post
    Where's Biscuits!?
    Present!

    Op, now try it with 20#'s boost, twin disc, and 4.30's!

    http://www.mercurymarauder.net/forum...ad.php?t=86476

    That was done on the street with street tires, line lock off, and AFTER the clutch was up! I made it about 3' BTW granted a used set of gears, but every other single part in my 31 spline set up was brand new 5,000 miles ago..

    Im still afraid to lay into it again..




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  7. 04-29-2013, 12:55 PM #7
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    Wanna rebuild my rear for me?

    Quote Originally Posted by justbob View Post
    Present!

    Op, now try it with 20#'s boost, twin disc, and 4.30's!

    http://www.mercurymarauder.net/forum...ad.php?t=86476

    That was done on the street with street tires, line lock off, and AFTER the clutch was up! I made it about 3' BTW granted a used set of gears, but every other single part in my 31 spline set up was brand new 5,000 miles ago..

    Im still afraid to lay into it again..




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  8. 04-29-2013, 12:59 PM #8
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    Quote Originally Posted by SAAAAAC View Post
    Wanna rebuild my rear for me?
    In not into that kinda thing. Too dirty, smelly, and dark..



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  9. 04-29-2013, 01:01 PM #9
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    I don't blame you.

    Quote Originally Posted by justbob View Post
    In not into that kinda thing. Too dirty, smelly, and dark..



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  10. 04-29-2013, 01:15 PM #10
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    Keep us posted on any progress or further pics of the carnage.
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  11. 04-29-2013, 01:35 PM #11
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    You don't need a 9 inch in my opinion...but you MUST use a girdled cover. I would not own a car without one...PERIOD!
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  12. 04-29-2013, 01:58 PM #12
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    Quote Originally Posted by justbob View Post
    In not into that kinda thing. Too dirty, smelly, and dark..



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    ouch in both cases.

    sorry about your rear end
    Those were the days.........

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  13. 04-29-2013, 02:22 PM #13
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    Quote Originally Posted by Curless View Post
    You don't need a 9 inch in my opinion...but you MUST use a girdled cover. I would not own a car without one...PERIOD!
    DONE! And thanks for the advice on the solid spacer! DONE as well.



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  14. 04-29-2013, 02:22 PM #14
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    Quote Originally Posted by Curless View Post
    You don't need a 9 inch in my opinion...but you MUST use a girdled cover. I would not own a car without one...PERIOD!
    Gridled cover AND a harden diff main cap stud kit.
    http://www.brothersperformance.com/8...l#.UX7j4I_vtF4

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  15. 04-29-2013, 02:23 PM #15
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    Quote Originally Posted by lji372 View Post
    ouch in both cases.

    sorry about your rear end

    Uhhhhh, TWSS????

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