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  •  » Mustang Steve 68 Booster

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    7/11/2026 10:33 AM  #1

    Cookingsteaks
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    Registered: 7/02/2026
    Posts: 3

    Mustang Steve 68 Booster

    Hi. Just bought the MS booster and it arrived today.  Excited to try and solve why the pedal has been touchy.  My set up.  68 w 428.  Factory Front Disc/Rear Drum power brakes. Correct Master.  Mustang Steve correct brake pedal and now the booster.  Quick question - the original booster has the spacer on it.  Looking at the MS booster just seeing if others are using the spacer between booster and MC  or deleting it.  Thanks in advance Mike

     

    7/11/2026 11:13 AM  #2

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,955

    Re: Mustang Steve 68 Booster

    Pretty sure that spacer is mandatory. But it's been years since I removed the power for manual brakes.

    Bob. 21.5 freeway MPG 69 Mach 1, 5.0 GT40P heads, SMOD Toploader, Armstrong  steering, factory AC
     

    7/11/2026 2:19 PM  #3

    Cookingsteaks
    Active Member

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    Registered: 7/02/2026
    Posts: 3

    Re: Mustang Steve 68 Booster

    Hi - been fighting the MS booster for the 68.  My car had the stock midland which was rebuilt years ago by booster Dewey and looks like the MS 68 is about an inch longer which is a challenge with the 428 in there.  Not sure of people have had any success with a smaller booster in the 68?  Been looking on search but haven’t seen anything,  Again I’ve got the factory power disc front and set back. Thanks

       •Thread Starter
     

    7/11/2026 4:57 PM  #4

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
    Posts: 1,515

    Re: Mustang Steve 68 Booster

    I think the spacer/filter is only used on the Midland booster, not the Bendix.
    The MS pedal is just a reproduction of your original pedal.

    Last edited by 50vert (7/11/2026 6:17 PM)

    "Those telephone poles were like a picket fence"
     

    7/11/2026 7:04 PM  #5

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,761

    Re: Mustang Steve 68 Booster

    The 68 should have the Midland/Ross booster (with band clamp) and the filter between booster and master cylinder.  The only suitable replacement for that is the 69 Bendix booster which uses a 9/16” spacer plate between the booster and firewall.  The booster bolts directly to the master cylinder.
    On my 69 with the Bendix booster, I put a very small dent in the shock tower to allow master cylinder removal without having to loosen the booster from the firewall. It did not show and made life much easier. 
    Those thinner boosters from China would not be a good choice for your car. The Bendix curved shaft booster is not too hard to come by.

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

    Yesterday 12:22 PM  #6

    Cookingsteaks
    Active Member

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    Registered: 7/02/2026
    Posts: 3

    Re: Mustang Steve 68 Booster

    Got the booster and master mounted.  Had to take off the export brace and valve cover.  Didn’t try the dent in shock tower but that may be next.  MC is pretty much touching the valve cover so will have to try a shim or reposition engine on mounts  to get the 1/4 inch. One question - I have the mustang steve 67-70 booster.  Have others had any issue getting the brake light switch to fit over the booster end where it attaches to the pedal mount.  Thx

       •Thread Starter
     

    Today 12:04 PM  #7

    Bolted to Floor
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    From: Houston, Texas
    Registered: 4/01/2013
    Posts: 2,053

    Re: Mustang Steve 68 Booster

    The joys of working on a big block Mustang.

    I didn't have much luck with the factory brake light switch. So, I made a bracket and used a brake pedal switch from a mid 70's Ford truck. 

    Link to rockauto. 
    ​https://www.rockauto.com/en/moreinfo.php?pk=44657&cc=1120712&pt=10474&jsn=558&_nck=Ekt6BqBF1pwlXdx0gYlm1esw98pF26vehMm%2FGG3C%2Fl2QOXSJubi7WbDk6s93%2F4wCDqmWMWpuR0P495g%2BCPVWz20lH339J3OdgveKfCRdL%2ByA8ctLt9%2BaLvoy5Tf4gTfRrUDuaekpXIY6YPyzJcbQGsty4kE6p8lS2KP0gQHCjcCE73eUFk4QLPlywtiwXu%2FD90wEwLvMBRPBZvgZtxj0RssV04mD4mLEwG%2BPPyKphrvyeDSdzk2v%2FBB%2FRy58G4xzV%2Fi1Vtyi%2BAHl2ihJs7qcVs1kUI0gt8hOFLEdgQGDifcd6VXcTKrAXKPg8c83UyZaBFfYgs9Y07eeJYBpAxaXDFCJmEkRi8Ihlad5XQZS96g%3D

    John  -- 67 Mustang Coupe 390 5 speed
     

     

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