Cascade Crew

Xophertony

i have a 3.27 posi 9bolt disc brake rear end sitting in my garage itching to get on my GTA. the GTA of course originaly left the factory with this same setup (posi/disc/9bolt/3.27) it has a temporary on there now (posi/drum/10bolt/2.72). i want to upgrade the rear brakes before i slap it on. right now it needs new discs and has both stock calipers. i have been searching through old posts on TGOs brake board but finding details is always dificult.

so hear it is: what should i do? i want good stoping power. i want no brake fade. i am prepared to upgrade to an aftermarket proportioning valve. so i want your opinions. i would prefer not to spend more then $300.

EDIT: ok after more reading i think i have decided to uprade to 1LE brakes. it appears it is gonna cost my like $500+... but i have no rear brakes now.. so it seems worth it.

iansane · Posted: Sun Jan 15, 2006 7:53 pm Post subject:

1LE's? Aren't the 1LE rears just standard pbr calipers (the same ones used on 89-92 fcars and similar to the 94-97 fcars?) If so I think I've heard of people adapting the standard PBR calipers to the 9bolt. Just get some good blanks and some nice pads. I've had good luck with bendix titaniums. Almost no dust and little to no brake fade.

Xophertony · Posted: Mon Jan 16, 2006 12:49 am Post subject:

Blanks?

so are you saying i could use the same carrier and rotor? just change to the newer style calipers? sounds cheap and easy. Smile

iansane · Posted: Mon Jan 16, 2006 4:19 am Post subject:

Blanks = fresh blank rotor, not drilled or slotted

Do you have PBR calipers or are they the older iron units? (The PBRs have fins cast into the backside of them).

The rotor would most definately have to be changed, other than that I have no idea...

http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=246768

or

http://www.thirdgen.org/techbb2/showthread.php?s=&threadid=306171

Just a little bit to help.

Really the only other stock style upgrade is to the LS1 calipers that have a drum style parking brake inside the rotor. I'm no sure of the advantages of that setup though.

Xophertony · Posted: Mon Jan 16, 2006 1:07 pm Post subject:

thanks for those links. the only reason i am not doing "LS1" (98+ fbody) brakes are they they will not clear ANY 15" wheels or most stock 16" wheels. and i have 15" now and the only change i would make would be to stock 16"... so they are wheel prohibative.

the 1LE is still going to have a few hoops... backing plates alone are going to cost me $200 for the 9bolt.