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Thread: Help

  1. #1

    Help

    My differential case has tooth missing. Should I just replace it with another the same or should I upgrade? If I upgrade which do I choose to fit my original axles? I found out cause we are installing 4:10 gears

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  2. #2
    Join Date
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    03 or 04 Marauder, crown Vic or grand Marquis has same rear axle housing. Gear ratio most likely different. Mid year 05 and later are 31 spline axles. Yours are 28 spline
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  3. #3
    Join Date
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    If it was me, I'd try to find a used side or spider gear and replace the broken one.
    You "feel" the difference because you want to "feel" the difference. Since you just spent money on the upgrade you "have" to feel the difference

    I'm looking to eliminate the double pump process I have to follow right now to get the pedal hard

    2004 300A Procharger #0010 D1X
    2003 300A Procharger #0017 D1SC (SOLD. Last I heard, it was in Washington State)

  4. #4
    Would gear ratio make a difference?

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  5. #5
    Quote Originally Posted by RubberCtyRauder View Post
    03 or 04 Marauder, crown Vic or grand Marquis has same rear axle housing. Gear ratio most likely different. Mid year 05 and later are 31 spline axles. Yours are 28 spline
    Would gear ratio make a difference?

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  6. #6
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    Get a Detroit trutrac and forgetaboutit.
    Built: 3/16/2004
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  7. #7
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    Quote Originally Posted by chivio2000 View Post
    Would gear ratio make a difference?

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    yes it will, you have 3.55. Some police cars had 3.55, but a lot had 3.27..civilian cars are 2.73 unless a sport or hpp model..The shifting will all be wrong, etc...


    gear ratio can be changed, but if you find a 3.55 one, then swap whole thing
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  8. #8
    Join Date
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    He has my old tuner that is setup for 3.55 or 4.10 tuning.
    2003 budget built marauder-LM7 5.3 SBE 4L80E VS racing 78/75 turbo and other things
    1.56 60' 6.80 1/8 @ 104 mph 10.5 1/4 @129 mph
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  9. #9

    03 Marauder Spider Gears

    Was going to install 4.10 gears. Spider Gears all chewed up. Are there any replacement if yes part #? If no what internals can I install to replace? I saw some trans lock but which can I install with no modification and continue using my splines and rear end cover. Or any ford 8.8 28 spline fits?

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  10. #10
    Join Date
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    Quote Originally Posted by chivio2000 View Post
    Was going to install 4.10 gears. Spider Gears all chewed up. Are there any replacement if yes part #? If no what internals can I install to replace? I saw some trans lock but which can I install with no modification and continue using my splines and rear end cover. Or any ford 8.8 28 spline fits?

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    There are no replacement parts available for the Marauder posi unit other than clutches. You are going to have to purchase a new carrier... I would buy an Eaton Tru-Trac
    #2941 300A
    4.10's, carbon clutches
    Marty O Tune
    Curless Cure
    Widened Wheels
    Dead Pedal
    Eaton Swapped

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  11. #11
    Quote Originally Posted by Curless View Post
    There are no replacement parts available for the Marauder posi unit other than clutches. You are going to have to purchase a new carrier... I would buy an Eaton Tru-Trac
    If I'm on a short budget what other recommendation?

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  12. #12
    Quote Originally Posted by chivio2000 View Post
    If I'm on a short budget what other recommendation?

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    Instead of the Eaton Tru-Trac what other you recommend ?

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  13. #13
    Join Date
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    Quote Originally Posted by chivio2000 View Post
    Was going to install 4.10 gears. Spider Gears all chewed up. Are there any replacement if yes part #? If no what internals can I install to replace? I saw some trans lock but which can I install with no modification and continue using my splines and rear end cover. Or any ford 8.8 28 spline fits?

    Sent from my LG-H918 using Tapatalk
    There are no replacement parts available for the Marauder posi unit other than clutches. You are going to have to purchase a new carrier... I would buy an Eaton Tru-Trac
    #2941 300A
    4.10's, carbon clutches
    Marty O Tune
    Curless Cure
    Widened Wheels
    Dead Pedal
    Eaton Swapped

    Bar tender and maker of:
    Christmas in a cup
    The "Bucket of South Haven Iced Tea"
    One Legged Lesbian Kickboxer
    Cocka Two

  14. #14
    Join Date
    Jun 2011
    Location
    Northeast OH
    Posts
    7,999
    Use car-part.com to search for an axle with 3.55 gears or part it out
    2004 SB Ported Trilogy 48
    Has supporting mods and stuff
    Thanks to Marty O for his help in updating this car.

    R.I.P.
    Rex "SC Cheesehead"

  15. #15
    Join Date
    Aug 2011
    Location
    Washington State
    Posts
    2,108

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