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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Brake Booster & Stop Light Switch

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Old Sep 22, 2019 | 09:10 PM
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jeremywatco
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Brake Booster & Stop Light Switch

Just finishing installing the brake booster kit from Master Power. Pretty easy kit to install. Only one issue. The pushrod in the kit is a threaded yoke style and is not compatible with the stock stop light switch. Any thoughts on how to get working brake lights? I went to the auto parts store to see about a pressure switch and they sold me a generic on with 1/8 NPT threads and no adapters to make it inverted flare.

Would love to keep the stock switch just for ease of future repairs however I can't for the lift of me figure a way to make it work.

Anyone have an ideas? Thanks
 
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Old Sep 22, 2019 | 10:41 PM
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Originally Posted by jeremywatco
Just finishing installing the brake booster kit from Master Power. Pretty easy kit to install. Only one issue. The pushrod in the kit is a threaded yoke style and is not compatible with the stock stop light switch. Any thoughts on how to get working brake lights? I went to the auto parts store to see about a pressure switch and they sold me a generic on with 1/8 NPT threads and no adapters to make it inverted flare.

Would love to keep the stock switch just for ease of future repairs however I can't for the lift of me figure a way to make it work.
What year is the truck, what series? The brake pedal and the brake lamp switch used in 1967 are 1967 only.
 
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Old Sep 22, 2019 | 10:46 PM
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Originally Posted by NumberDummy
What year is the truck, what series? The brake pedal and the brake lamp switch used in 1967 are 1967 only.
'67 F100. What I am saying is my new booster kit isnt compatible with the stock setup. What I think I am going to do is Tee in a pressure switch on the 1/2" master port.
 
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Old Sep 22, 2019 | 10:48 PM
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1967: Brake lamp switch attaches to the brake pedal, but these two parts are 1967 only. 1968/72 use a different switch and brake pedal. The 1968/72 switch can be adjusted.

1967's used dozens of one year only parts that are different than 1968/72.
 
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Old Sep 22, 2019 | 10:58 PM
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Originally Posted by NumberDummy
1967: Brake lamp switch attaches to the brake pedal, but these two parts are 1967 only. 1968/72 use a different switch and brake pedal. The 1968/72 switch can be adjusted.

1967's used dozens of one year only parts that are different than 1968/72.
New booster push rod is totally different.. wont work with the stock switch setup. I guess for simplicity sake I'll use a pressure switch
 
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