I am in the process of resealing my front axle (74 FJ40) and part of this is a rebuild of the wheel cylinders and the install of a S-10 master. (kudos to Mr. Smythe re his article) Anyway, I am not real sharp on the brake theory stuff. Wherein as when I repipe this cruiser should I place a proportioning valve in the system. And if the answer is yes.............where? ??? Thanks for helping a brake deficent do-it-yer-selfer.