When converting rear drums to disks, it has been recommended that you add a stock Toyota 4-wheel disk proportioning valve. This is due to fundamental functional differences in the front disk rear drum valve (hydraulic preload, etc). I pulled a MKII Supra proportioning valve for my project, but am considering adding an adjustable valve. My question is:
When adding an adjustable proportioning valve, is it recommended to keep the stock valve block or to eliminate it? I would imagine that keeping the old one inline would only allow reducing the rear brake bias below stock. However, the stock valve block allows handy splits and connections for the lines. On the net it seems that some people install the line on the front brake line off the MC rather than the rear line in order to increase rear bias above conservative stock levels by decreasing pressure to the fronts. Anyone have experience with any of this? -Jon +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ PSSST!!! Want to upgrade those plain-jane seats in your Toyota? Visit http://www.racing-seats-usa.com! A great selection of fixed-back and reclining seats for street or race, complete with custom brackets to fit your Toyota. From the folks that bring you this list: CyberAuto! +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
