Power Brake Conversion Help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hgs_notes · 07-03-2006, 08:50 PM

Guys & Gals, I need some help. I swapped everything from a 3/4 ton truck to my C-10. I had a few issues, like the master cylinder is switched front to back, etc. But I got it all together except one thing. The brake pedal to booster push rod. I did get the one from the doner truck, but it is about 1/2" too short. If I hook it up to the pedal, the pedal is depressed like half way and the brake lights come on. Is the piece that bolts to the pedal also longer than the C-10? I didn't take that piece, just the one that hooks to the linkage behind the booster.

If that isn't it, I'm at a total loss for ideas. Help! I can't drive my truck!

HG

JimKshortstep4x4 · 07-03-2006, 09:25 PM

The adjustable rod between the pedal and the booster on our K-20 setup is 9"
as measured from center of hole to center of hole. All of the power brake pedals that we have in our trucks are lower than the non-powered brake pedals. (I can measure one tomorrow if no one else posts a measurement). The brake light switch is adjustable.

Jim

hgs_notes · 07-04-2006, 12:18 AM

Jim, are you saying that the with power brakes, the peddle at rest does not rest against the stop? I like the idea of having the pedal lower, it just seems so wrong. But thanks for the info.

HG

Longhorn Man · 07-04-2006, 12:27 AM

That is correct. It sits a couple inches lower.

ChevyDude · 07-04-2006, 01:33 PM

Quote:

Originally Posted by Longhorn Man

That is correct. It sits a couple inches lower.

That's nice to know...I wondered why my new PB set-up didn't touch the stop pad

...Guess now I know!!!

07-03-2006, 08:50 PM	#1
hgs_notes GEARHEAD Join Date: Aug 2003 Location: MN Posts: 6,126	Power Brake Conversion Help Guys & Gals, I need some help. I swapped everything from a 3/4 ton truck to my C-10. I had a few issues, like the master cylinder is switched front to back, etc. But I got it all together except one thing. The brake pedal to booster push rod. I did get the one from the doner truck, but it is about 1/2" too short. If I hook it up to the pedal, the pedal is depressed like half way and the brake lights come on. Is the piece that bolts to the pedal also longer than the C-10? I didn't take that piece, just the one that hooks to the linkage behind the booster. If that isn't it, I'm at a total loss for ideas. Help! I can't drive my truck! HG __________________ If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 Long Fleet C/10 72 Jimmy 4x4 (Junkyard Jimmy) HG's Plow Truck '78 K35 Dually Bigass Farm Truck HG's thread of miscellaneous stuff

07-03-2006, 09:25 PM	#2
JimKshortstep4x4 Senior Member Join Date: Jul 2001 Location: Muskegon,MI,USA Posts: 6,026	Re: Power Brake Conversion Help The adjustable rod between the pedal and the booster on our K-20 setup is 9" as measured from center of hole to center of hole. All of the power brake pedals that we have in our trucks are lower than the non-powered brake pedals. (I can measure one tomorrow if no one else posts a measurement). The brake light switch is adjustable. Jim

07-04-2006, 12:18 AM	#3
hgs_notes GEARHEAD Join Date: Aug 2003 Location: MN Posts: 6,126	Re: Power Brake Conversion Help Jim, are you saying that the with power brakes, the peddle at rest does not rest against the stop? I like the idea of having the pedal lower, it just seems so wrong. But thanks for the info. HG __________________ If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 Long Fleet C/10 72 Jimmy 4x4 (Junkyard Jimmy) HG's Plow Truck '78 K35 Dually Bigass Farm Truck HG's thread of miscellaneous stuff

07-04-2006, 12:27 AM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Power Brake Conversion Help That is correct. It sits a couple inches lower.



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