Upgrading the brakes on the j10

[nblehm]

Booster is going out on my truck, and the rear brakes dont work. So time to upgrade. Going to convert the rear drums to 1/2 ton chevy discs. Get a wagoneer dual diaphragm booster. When I convert the rear to discs, I am going to move the front calipers to the back and get the bigger 3/4 ton calipers for the front. Anybody running the Chevy calipers front and rear, what master cylinder are you using? Also want to put a ball valve in (paging Matt where did you get them)