i just bought a 1989 RS and i would like to swap some factory disks on the rear. i can get vented rotors if need be,i just need everything else.

 

Welcome to TGO, wracks.

FYI: Swapping from drums to discs isn't a simple bolt-up affair. You'll either have to modify the axle flanges or purchase a 'kit' from Ed Miller, if you choose to use the more desirable PBR's (alum calipers and 11.7" rotors), which could be had on 89+ rear wheel disc cars. I wouldn't recommend the 82-88 iron Delco-Moraine version. Take note that you'll also need either a 1LE combination valve or an adjustable as well as parking brake cables. A search will provide much more info on the subject.

JamesC

 

thanks for the heads up james! so i need an 89 and up for ease of installation? i don't want to swap the whole rear since mine has a new gear and slip unit.

 

Yes. You can modify the axle flange and do one of the following:

https://www.thirdgen.org/forums/faq-...iscs-89-a.html

or

https://www.thirdgen.org/ls1reardisc

The latter has a better parking brake system.

Another option is the kit that eliminates the flange mod:

http://www.flynbye.com/catalog/i182.html

A search will provide a ton of info.

JamesC