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  •  » Brake Light Switch on Mustang Steve Pedal Assembly

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    6/01/2019 11:22 AM  #1

    50 Proof
    FYI FORD Member

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    Registered: 5/12/2013
    Posts: 20

    Brake Light Switch on Mustang Steve Pedal Assembly

    I’m going nuts here trying to get my brake light switch to work. It’s on my ‘65 coupe and I’m using the mustang Steve 5 speed pedal assembly and power brake setup.

    The brake light wiring is good, tail light buckets are new. If I manually push the switch in, brake lights light up. When I install it on the post on the pedal assembly with shims and all, it doesn’t work. It’s as if the switch isn’t getting pushed in by the brake booster rod. I’ve tried a manual brake switch for a ‘65 and now a power brake light switch for a ‘70 mustang. I can’t seem to get it to work. Any input you guys could offer?

    Last edited by 50 Proof (6/01/2019 11:23 AM)

     

    6/02/2019 7:44 AM  #2

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,294

    Re: Brake Light Switch on Mustang Steve Pedal Assembly

    The 70 power brake switch is my preference. It has a lighter spring that works better with power assist.  No shimming is normally required. Does your switch clear the steering column ok?

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

    6/02/2019 5:23 PM  #3

    50 Proof
    FYI FORD Member

    Offline

    Registered: 5/12/2013
    Posts: 20

    Re: Brake Light Switch on Mustang Steve Pedal Assembly

    The switch in this pic is a 70 mustang power brake switch. It clears the steering column but only if it’s parallel with the floor, in which case it doesn’t work. If I clock the end with the prongs downward towards the floor the switch works but it hits the column and then tapping the brakes 2 or 3 causes the switch to pivot back up again to a position that doesn’t work.

    Let me know if the pic link doesn’t work
    https://1drv.ms/u/s!Aq0rbhaiSGJ0gsQ03H2HT-HtMYVmlQ

    Don’t click above link, select the entire link, then copy and paste into your URL bar.

    Last edited by 50 Proof (6/02/2019 5:24 PM)

       •Thread Starter
     

    6/14/2019 12:54 PM  #4

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,294

    Re: Brake Light Switch on Mustang Steve Pedal Assembly

    Wondering why the switch is angled downward?   The boosters usually have a vertical plat end on the shaft, or a slightly angled upward flat.  The simple solution is to mark the area on the tube where it hits, then loosen and rotate the steering column tube so you can get the required area pointing downward, then place a dent in the column tube for clearance.  Then, rotate it back in place and tighten it up.  The column is 2"+ diameter, and the shaft is only 3/4", so there is plenty of room to dent the column without any interference occurring.

    Another possible way is to loosen the four booster studs, pull the booster as high as possible and then retighten the nuts.  If your firewall holes are a bit oversized, the booster can slip down a bit before you get it tightened in place.
    I used to have the dent suggestion in the instructions for the power brake kits.  Wondering if it is still in there?  I hope your booster is working well for you.

    Last edited by MS (6/14/2019 1:03 PM)

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

     

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