New Brake Pressure Differential Valve Rebuild Kit
 

I just finished collecting all of the parts needed to provide a rebuild kit for 1967 - 1975 GM brake pressure differential switch/valve assemblies. The kit includes new EPDM (a rubber compound that is fully compatible with brake fluid, unlike the nitrile o-rings you can get at your local parts store) o-rings and stainless steel springs. The springs were custom made using original springs for specs. I haven't been able to test the kit out on all of the different valves that were available on GM cars, but I'm very confident that it will fit - and if it doesn't, I'll work with you to make it right. The springs might be just a hair longer or shorter than the springs used in some of the GM valves that I haven't seen. The kit costs $10 plus shipping, and orders can be taken on my web site:

http://www.musclecarresearch.com/gm-pd-valve-kit-1

Payment can be made using a credit card, PayPal, check, or money order.

Complete disassembly and rebuild instructions can be found here:

http://www.musclecarresearch.com/197...-valve-autopsy

http://www.musclecarresearch.com/197...-valve-autopsy

and here:

http://www.musclecarresearch.com/gm-pd-valve-rebuild

Feel free to ask questions!

Re: New Brake Pressure Differential Valve Rebuild Kit
 

Very nice. Do you include a new brass seat or do we just reinstall the old?

Re: New Brake Pressure Differential Valve Rebuild Kit
 

I don't include a new seat with the kit. If you use a puller tool like the one I have here:

https://www.musclecarresearch.com/brake-valve-seat-tool

the seat can be reused.

Re: New Brake Pressure Differential Valve Rebuild Kit
 

Very nice work Scott, Thanks... [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img]

Mike