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Thread: gearing up a 4.0

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  1. #1
    Senior Member Wades GT's Avatar
    Join Date
    Mar 2009
    Location
    peoria
    Posts
    401
    Auto 3.73 Manual 4.10
    Gears are probably the best bang for your buck, v6 or v8. I had my 4.10 gears installed at AZ differential. You will need a tuner or have some body set your speedo too your new gear ratio. I would also look into bearings and seals just in case your old ones look pitted or fall apart.
    http://wildwestmustangsaz.com/gallery/albums/userpics/EVIL SIG.jpg

  2. #2
    Member tsuckley's Avatar
    Join Date
    Nov 2006
    Location
    el mirage
    Posts
    50
    thats where i was leaning. i figured i would replace the bearings and seals anyway since i already have over 80k miles on the car. better be safe than sorry.. the tuner was actually the first "mod" i ever bought for my car.. lol

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