Dealer can get you rebuild kits. I have a set on the shelf for front ls1 car calipers.
Code:
Image*Pos. Part*Number Model/RPO*Usage Description*of*Part Needed In*Pkg. Image Left/Right Price
1 12456459 F(J65) BRACKET,RR BRK CLPR(ON CALIPER) 2 1 * * 54.21
6 12530709 F(J65) SEAL,RR BRK CLPR PSTN(*KIT2,KIT3) 2 1 * * 9.38
7 12530707 F(J65) BOOT,RR BRK CLPR PSTN(*KIT2,KIT3) 2 1 * * 8.5
8 12453509 F(J65) PISTON,RR BRK CLPR(*KIT2)(ACDelco #179-2010) 2 1 * * 40.54
10 14071826 F(J65) VALVE,RR BRK BLEDR(*KIT2) 2 1 * * 5.65
12 12530703 F(J65) BOOT,RR BRK CLPR GDE PIN(REPCO LTD)(CODED WITH A DOT OF ORANGE PAINT)(*KIT3)(ACDelco #179-2008) 4 1 Click * 7.39
13 12530697 F(J65) PIN,RR BRK CLPR GDE(ACDelco #179-2009) 4 1 Click * 8.75
13 88928086 FP PIN,RR BRK CLPR GDE(DURASTOP)(ACDelco #18K1038)(DURASTOP) 2 1 * * 12.21
14 14067559 F BOLT,RR BRK CLPR(W/ THREADS SELF-LOCKING)(*KIT1,KIT2,KIT3) 4 1 * * 5.96
K01 88899570 F(J65) PAD KIT,RR DISC BRK(INCLS 2-4,11,14)(ACDelco #171-813) 1 1 * * 101.97
K02 12455127 F(J65) CALIPER KIT,RR BRK(INCLS 5-11,14) 1 1 * L 135.13
K02 12455128 F(J65) CALIPER KIT,RR BRK(INCLS 5-11,14)(4.665) 1 1 * R 152.83
K03 12530687 F REPAIR KIT,RR BRK CLPR HYD(INCLS 6-7,12,14) 2 1 * * 22.95
http://www.compnine.com/index.php?u=...04&grouptype=B