Hello, i heard the 89 and up rear brake calipers are better than the 88 and below. how hard is it to switch to the 89 and up? will i have to do any mods? or will they just bolt up? thanks, tom...i would also like to have a parking brake when finished!

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86 iroc 305tpi auto. mild cam

 

Do a search on this subject,1LE brake upgrade or something to that nature.Everything you need is on here,if not give me a day or two to get all the numbers you need from my swap and I'll get them to you.

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1982 Z28:355,4 Speed,Lots of bolt ons

 

thanks, i'll try to find more info in the history...but will accept any new info as well.

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86 iroc 305tpi auto. mild cam

 

I don't think the 89-92 rear disc setup is a direct bolt on to a drum rear. The axles are different on the disc rear axle. The easy way woul be to get a whole disc rear.

 

mckenzie - do you already have a disc brake rear end?
... 9 bolt or 10 bolt?

 

hello, i currently have the factory 4 wheel disc brakes. i have the 10 bolt rear end. thanks, tom

 

The brakes will bolt up to a 10-bolt rearend I have them on my rearend which came out of 87 TA. AndyZ28 has some picture I sent him. If you ask mybe he can post them for you or e-mail them to you I lost mine when my computer crashed.
Tad

 

does anybody know what years are the good rear calipers to bolt up to my 86 iroc with factory 4 wheel disc?

 

89-92 have the PBR caliper setup. It is MUCH better than the 88 and below version.

 

I sent the pictures to TAD, I kinda figured they would be posted by now. Can someone else post them? I still don't know how.

 

what is a PBR setup?...does anybody know if they are a direct bolt up for an 86 iroc with factory 4 wheel disc brakes?

 

mckenzie , Ijust emailed the pictures of the PBR aulminum caliper set up.

 

PBR is the company that made them. They're Australian I believe.

You will have the parking brake, if you have the cables that came with the PBR calipers. For instance, I have a 91 or 92 rear end with PBRs under my 83 car, the cables hooked right up and work flawlessly.

You will have to remove the axles to swap the backing plates. No biggie.

 

thanks to everybody for your help...Tom

 

I was checking out the information in other posts on this subject. One article, on how to add 1LE brakes seemed to say (and maybe it did say) that you can use the original rotor with those PBR's. Is that right? Thanks!

 

No, you cannot use the original rotor. You must use the 1LE rotor w/ the 1LE caliper.

Thanx,ANDYZ28

 

Does anyone know if when doing this conversion from the earlier style rear disc to the 89 or 1LE style if the proportioning valve must be changed also?

 

Yes...do a search on prop valve or my ID and you'll get the right part number and info. Or go to Daniel Burke's page and get the info there. You will need the '88 and earlier style, "first design" prop valve.

Also, you will need to swap the master cyliinder to a disc/drum car.

HTH...Ed