Just swapped out my 9 bolt from my 88 firebird with the performance package 350 for a 10 bolt with 1LE brakes; my firebird had 4 wd brakes do I need to change the Master cylinder and Prop. Valve or will mine work?? 10 bolt from a 92 iroc

 

Road test the car first. But you may need GM part# 14089496 proportioning valve.

Thanx,ANDYZ28

 

Would I be better off just changing the m/c and prop. valve from the 1LE car? I bought the whole car as aparts car and have everything?

 

EHHHH, WHAT!!!! You bought a 1LE car for PARTS? Do I have that right?

 

yes!!! the car was rearended 92 camaro rs b4c police package 1le performance package. everything complete except for a crushed drivers side rear quarter panel gave $800 for the car had the hotchkis panhard rod and trailing arm package, SFC, kyb shocks BFG drag radials, 10 bolt with Moser axles and Moser 3.73 gears, I have changed most of this to my firebird next project is to make my bird a five speed I came away pretty good huh?

 

you *shouldnt* need the prop valve as long as you were originally equipped with discs. i didnt change mine when i went from 9 bolt to 10 bolt and the brakes are working just fine.

 

What " u r sofa king we tah did" said is correct.

 

Thanks for all of the info!!!