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Thread: 7.5 Rear rebuild and gear swap

  1. #1
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    Default 7.5 Rear rebuild and gear swap

    The last few months 7.5" rear end has been getting noisy. So I went ahead and ordered a new set of 3.45 gears to replace the current 3.55. When I opened the cover I was surprised to find a ford Trac Lok limited slip. I was expecting to find a gear locker because thats what I asked for years ago when I last had the rear end built. The gears were Richmond 3.55 like I requested.
    The problem is that some of the ears are broken on the clutch plates. I want to rebuild my LSD carrier with some new clutches, but I cant find the parts anywhere Does anyone know where to get clutches for a 7.5" ford Trac lok?

    This is the new gear set
    http://www.jegs.com/i/JEGS+Performan...0021K/10002/-1



    turbo charged 94 Cobra engine/440cc injectors/megasquirt /5 speed swapped (T5)/maxbox upper intake/70mm PP throttle body/AJE coilovers/2003 Mustang control arms/S.T. sway bars/ES rear control arm bushings/11" brake conversion/manual rack conversion/8.8 TC rear with rear discs and a welded diff/3.73 gears/PLX wideband/199mph speedometer/Aeromotive FPR/CNC hydraulic hand brake/cobra R wheels/....ect.

  2. #2
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    I spend money I don't have, To build cars I don't need, To impress people I don't know

    HAVE YOU DRIVEN A FORD LATELY!!

  3. #3
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    Thats exactly what I need, but it says " out of stock".

    turbo charged 94 Cobra engine/440cc injectors/megasquirt /5 speed swapped (T5)/maxbox upper intake/70mm PP throttle body/AJE coilovers/2003 Mustang control arms/S.T. sway bars/ES rear control arm bushings/11" brake conversion/manual rack conversion/8.8 TC rear with rear discs and a welded diff/3.73 gears/PLX wideband/199mph speedometer/Aeromotive FPR/CNC hydraulic hand brake/cobra R wheels/....ect.

  4. #4
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    I spend money I don't have, To build cars I don't need, To impress people I don't know

    HAVE YOU DRIVEN A FORD LATELY!!

  5. #5
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    Ummmmm.... Never heard of a 3.55 gearset for a 7.5" rear before....

    3.45 yes. Not 3.55...
    -- 05 Mustang GT-Whipplecharged !! -- 87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's! http://www.fquick.com/V8Demon

  6. #6
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    Maybe they were 3.45, but I'm pretty sure I saw some 3.55 sets when i was shopping for these. I was just counting the rotations and it was about 3.5 turns of the pinion to one turn of the axle. Not the most accurate test. Anyway, I found my clutches today at the ford dealer right down the street. They had them in stock for $103
    Those little ears on the clutch discs are what were breaking off on the old clutches.
    [IMG][/IMG]

    turbo charged 94 Cobra engine/440cc injectors/megasquirt /5 speed swapped (T5)/maxbox upper intake/70mm PP throttle body/AJE coilovers/2003 Mustang control arms/S.T. sway bars/ES rear control arm bushings/11" brake conversion/manual rack conversion/8.8 TC rear with rear discs and a welded diff/3.73 gears/PLX wideband/199mph speedometer/Aeromotive FPR/CNC hydraulic hand brake/cobra R wheels/....ect.

  7. #7
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    As far as i know their is no 3.5 final in a 7.5 but who cares. Glad you got the parts you needed.
    I spend money I don't have, To build cars I don't need, To impress people I don't know

    HAVE YOU DRIVEN A FORD LATELY!!

  8. #8
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    so your running the combo in your sig through a 7.5?

    maybe i won't need to upgrade afterall
    83 Thunderbird Heritage - Right Hand Drive
    95 Falcon GLi

  9. #9
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    The 7.5 is no slouch. It can handle some good ponies if set up correctly
    I spend money I don't have, To build cars I don't need, To impress people I don't know

    HAVE YOU DRIVEN A FORD LATELY!!

  10. #10
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    I do beat on this car pretty hard. With all the towing, racing, and drifting. I used to tow an 1800lb trailer regularly with 3 quads. I'm still waiting on my gears and bearings to come in. Tracking says tomorrow. Here's some more pics.
    look at the bent, dislocated ears sticking out of the clutch pack. I bet that was my noise.

    you can see the bent clutch ears wrapping around the side gear here.

    some smoked disks


    turbo charged 94 Cobra engine/440cc injectors/megasquirt /5 speed swapped (T5)/maxbox upper intake/70mm PP throttle body/AJE coilovers/2003 Mustang control arms/S.T. sway bars/ES rear control arm bushings/11" brake conversion/manual rack conversion/8.8 TC rear with rear discs and a welded diff/3.73 gears/PLX wideband/199mph speedometer/Aeromotive FPR/CNC hydraulic hand brake/cobra R wheels/....ect.

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