1911
Expedition Leader
I used a Summit proportioning valve, but it will still lock up the rears first on a panic stop. I would like to change out the valve to a better one. The rear kit was from JT Outfitters.
I used a Man-A-Fre kit for my rears and a Summit proportioning valve, and have the exact same problem. Let us know if you find a better valve, at least one with more adjustment. And I removed the residual valve too.