Hello !

I installed a 9'' on my 94 camaro,it is a unit that was fabricated long ago to fit on a 85 IROC-Z drag car.The brakes are 2nd or 3rd gen,drivers side caliper is on rear of axle and passenger's is on front of axle,and the pistons seem to be larger.

When we dynoed the car this year(diff has been on car several years now)we noticed that the rear brakes don't work !!!!!!! And I thought I had to pump the pedal because my ABS was no longer functional.

So the question is would a proportioning valve solve my problem of getting more fluid to the rear,or would this just shift my braking to the rear and handicap the front brakes.Or should I find a master cylinder that pushes more fluid to all calipers or a mix of the 2 solutions described above.

I would really like to have rear brakes since I trap near 118 MPH !!

Thank you !!

 

it could be that your master cyl has went out on you, try replacing that before you go any further..