After disassembling and examining two different pressure differential valves (
1970 Impala and
1972 Nova) I can say with complete confidence that I can provide rebuild kits (new EPDM o-rings seals and stainless steel springs) for both valve types. I just need to understand if restorers are interested in buying them. The retail cost would probably come in somewhere around $10 - $15. Would a product like this be useful?
I'm also digging into the proportioning, metering, and combination valves as I have time. You can see what I found in a 1978 Corvette Bendix combo valve here:
http://www.musclecarresearch.com/197...-valve-autopsy