When you are going to 4 wheel disc brakes you just need to use a 4 wheel drum brake proportioning valve. The one you have is a disc /drum. you need to use an equal drum/drum style. You have to use your. "Dipstick Son"
Thanks just thought I could gut out my proportioning valve and then it should be equal pressure. Read somewhere i can take out the bottom plunger and spring and will work fine