In my 1991 I will soon have LS1 front brakes and LT1 PBR's in the rear. My car came factory with the small disc and drums. Should I use the 90-92 1LE or the 90-92 Z28 proporting valve? I was thinking the 1LE since my brakes are roughly the same size, however everyone always tends to want more rear brake pressure so I was also considering the z28 one. Also this is as easy as unbolt the lines and rebolting right?

 

Would a non- 1le four wheel disc better than an 1le due to the extra rear pressure? Everyone seems to think that more rear pressure is needed on our cars since they are so front bias.

 

TTT, does my question not make sense or does no one have an answer?

 

I have the answer.

No one has an answer. I understand your frustration. Thousands of members, and not a peep.

Seth

 

Or should I just take my stock one and due that screw mod?

 

1LE valve will be the closest match but still far from a perfect match. The LS1 brakes have larger pistons and cylinder sizes. So your best bet would be to install an adjustable proportioning valve.