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Thread: Anyone put a newer disc brake rearend in a box?

  1. #1
    bigger is better over2tonsofFun's Avatar
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    Nov 2007
    Laramie, WY

    Default Anyone put a newer disc brake rearend in a box?

    I am looking to possibly put a rear end from a newer CV into my 85 2 dr. Has anyone done it? What modifications if any, are needed?

    Wanting to get a P-71 rear with 3:55s and tracloc.

    2000 Ford Crown Victoria
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  2. #2
    Road Warrior Kodachrome Wolf's Avatar
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    Nov 2014
    Evans, GA


    ‘92-‘97 axles will swap, however I don’t know if 3.55 was an option on those police package models. I believe the most complicated part is setting up the brake lines to work properly.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 POTM Winner
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  3. #3
    Beater gonna beat sly's Avatar
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    Mar 2010
    Lewisville, TX


    there's K code aeros. just gotta hunt for them. Look for tow package cars and HPP cars.

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  4. #4
    I post a lot...
    Join Date
    Apr 2010
    Southern NJ


    Doesnít someone here have a partís car 92 Touring Sedan? Iíd bet that has a 3.55.

  5. #5
    Approaching 2 decades of DDing Box Panthers VicCrownVic's Avatar
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    Nov 2012
    Shelby Township, MI


    Quote Originally Posted by tjc78 View Post
    Doesn’t someone here have a part’s car 92 Touring Sedan? I’d bet that has a 3.55.
    79lincolnlover I think, but he's a long way from most of us.

    Come to Detroit, it probably won't be hard to find that rear in the yards here.

    ~ 1991 Mercury Grand Marquis LS "The Scab" - plenty of rot, summer DD
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    ~ 1989 Mercury Grand Marquis GS - Rotting Retired DD
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  6. #6
    GMN Regular DerekTheGreat's Avatar
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    Sep 2014
    Warren, MI


    Don't mind the rust so better be up on your tetanus booster haha. Get yourself a cut off wheel and or Sawzall...
    1985 LTD Crown Victoria - SOLD
    1988 Town Car Signature - Current Party Barge

  7. #7
    Ford Fullsize For Life! marquis_82_withneons's Avatar
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    Mar 2013
    New Haven, Indiana


    currently in the process of doing this swap myself. my axle is from a 96 w/o abs. and it was a 2.73 open diff. i have a used set of 3.73 gears from an explorer and a traklok unit from a ranger that i plan to put together. if youre going for super cheap junkyard build, traclok 3.55 and 3.73 can be commonly found in explorers and rangers among others. might be an option if you cant find a panther axle to your liking. i didnt find direct swap axle with the guts i wanted, thats how i ended up with my current setup.
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