22 pc caliper rebuild kit includes

4    pistons, 4 boots, 4 seals, 2 bleeder screws, 2 bleeder screw cups,

4 bolt bushings, 4 bolts, 4 sleeve

Dodge 

Ram 1500  2006-2008 EXCEPT SRT-10

RAM 2500, 3500    2003-2008  

REAR calipers with 45 mm  pistons