NEW PAIR OF FRONT WHEEL CYLINDER KITS THIS KIT CONTAINS ENOUGH PARTS TO REBUILD 2 WHEEL CYLINDERS(2 KITS INCLUDED) CUP/BORE SIZE=1-3/16" WAGNER PART NUMBER: F33149 RAYBESTOS PART NUMBER: WK-237 LISTING INCLUDES THE FOLLOWING: (4) 1-3/16" CUPS (4) 1-3/16" CUP EXPANDERS (4) DUST BOOTS (2) SPRINGS THEY ARE A SUPERIOR LONG LASTING DESIGN SOFT PLIABLE RUBBER THESE FIT THE FOLLOWING VEHICLES: (FITS THE FRONT WHEEL CYLINDERS) 1959 TO 1964 PONTIAC ALL FULL SIZE MODELS WITH FACTORY FRONT DRUM BRAKES  (BONNEVILLE,CATALINA,EXECUTIVE,SAFARI,STARCHIEF) THESE KITS FIT MANY OTHER MAKES AND MODELS PLEASE USE EBAY'S PART COMPATIBILITY CHART TO VERIFY  ANY QUESTIONS PLEASE ASK! WE ARE HERE TO HELP! ARIZONA VINTAGE PARTS FREE SHIPPING