I have a brand new never installed 12" C5 rear brake kit for 10 bolt or 12 bolt GM rearend. I purchased this kit 3 years ago from Kore3 for my Syclone and never bothered to install them. Drilled and slotted AC Delco rotors with AC Delco semi metalic pads. No parking brake or flex lines. There are AN fittings for connecting the flex line to the caliper and hardlines on rearend.
http://www.kore3.com/proddetail.php?prod=10107-01
More pictures here.
http://rides.webshots.com/album/577880300otMuev
$400 OBO plus shipping. Parts located in St. Pete, Fla.
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Tim Knaebel
1969 Nova (Turbo V-6, Air Ride, 18's & 20's)
1972 Nova SS (526 KB Hemi, Blown and Injected, 7.38 @ 189 mph) Sold off
1991 GMC Syclone #2373 (Sold)
http://community.webshots.com/user/heminova