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  •  » 1975 Mustang II rear end question

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    5/26/2022 8:02 PM  #1

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,431

    1975 Mustang II rear end question

    Anybody used one in a 65-66? they are .25 narrower
    I know they are 8 inch but not sure what gearing they came with.

    Its really me....I fixed my caps lock .
     

    5/27/2022 6:46 AM  #2

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,418

    Re: 1975 Mustang II rear end question

    There were a bunch of different gear ratios available, the best of which was a 3.55:1.  On the low end they went all the way down to 2.40:1.  Best bet is to just check the tag.  It will have the ratio on it.  '75-'76 is your best bet for a decent performance ratio with a Traction Lok (these are 2 pinion carriers though). 

     

    5/30/2022 8:51 PM  #3

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,156

    Re: 1975 Mustang II rear end question

    Downside is 4 lug axles and smaller brakes.  Attaching flanges for backing plates even have smaller bolt pattern.
    I used to offer disc brackets with the bolt pattern for MII rear bolt pattern, but demand was nonexistent.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    6/02/2022 5:53 PM  #4

    retired65
    FYI FORD Member

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    Registered: 6/18/2020
    Posts: 37

    Re: 1975 Mustang II rear end question

    I have the original rear axle assy. out of my '65 Fastback I am going to sell.  I used a 9 inch from a Lincoln  Versailles.  This is complete with emer. brake cables and diff. assy. with drum brakes and has 5 bolt pattern for axles . According to the tag on the door, F, it is 2.80: 1    I don't know if it was ever changed.   Asking $500 plus shipping.

     

     

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