Kit Includes:

1x Rear Left Brake Caliper w/ Bracket - 18-B4854
1x Rear Right Brake Caliper w/ Bracket - 18-B4855

Caliper Specifications:

Piston Size: 2.13 inch (54.08mm)
Piston Material: Phenolic
Piston Quantity: 1
Brake Caliper Bracket Included: Yes

Fitment:

Replacement for 2003-2005 Cadillac Deville (with RPO Code J55 (HD Brakes))
Replacement for 2006-2011 Cadillac DTS (with RPO Code J55 (HD Brakes))

Replacement for Chevrolet Silverado 1500

2003 (with RPO Code JC3(Vacuum Power, Rear Disc, 6400lb); with Single Piston Rear Calipers)
2004 (with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power); Rear Disc; 6400lb; with Single Piston Rear Calipers)
2005 (RWD; Excluding Limited Slip Differential; Rear Disc; 6400lb; with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power))
2005 (4WD; Rear Disc; 6400lb; with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power))
2006-2007 (with RPO Code JH1 (Hydraulic Power, Rear Disc, 6400lb))

Replacement for GMC Sierra 1500

2003 (with RPO Code JC3(Vacuum Power, Rear Disc, 6400lb); with Single Piston Rear Calipers)
2004 (with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power); Rear Disc; 6400lb; with Single Piston Rear Calipers)
2005 (RWD; Excluding Limited Slip Differential; Rear Disc; 6400lb; with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power))
2005 (4WD; Rear Disc; 6400lb; with RPO Code JH1 (Hydraulic Power); with RPO Code JC3 (Vacuum Power))
2006-2007 (with RPO Code JH1 (Hydraulic Power, Rear Disc, 6400lb))