II GM04 339 26 N S FILTER K T1 KIT2 27 N S RETAINER K T1 KIT2 28 N S O RING KIT1 K T2 29 N S PUSH ROD ASM AIR VALVE KIT1 30 N S PISTON POWER K T1 2 SERVICE KITS M I KIT 1 4 901 BOOSTER P B INCLS ITEMS 1 THRU 30 90 91 W J65 1 18016409 4 901 BOOSTER P B INCLS ITEMS 1 THRU 30 92 W 1 18019236 4 901 BOOSTER P B NCLS ITEMS 1 THRU 30 93 W 1 18020022 2 4 898 REPAIR KIT P B BOOS INCL ITEMS 4 5 11 90 91 W J65 1 18014481 12 13 15 17 19 21 24 25 26 27 28 INCLS DIAPHS SOLD AS ASM 4 898 REPAIR KIT P B BOOS NCL ITEMS 4 5 11 92 W 1 18014481 12 13 15 17 19 21 24 25 26 27 28 NCLS DIAPHS SOLD AS ASM 3 4 955 VALVE KIT P B BOOS VAC CHK W GROM 90 91 W J65 1 18012017 INCL ITEMS 2 3 4 955 VALVE KIT P B BOOS VAC CHK W GROM 92 W 1 18018978 INCL ITEMS 2 3 4 955 VALVE KIT P B BOOS VAC CHK W GROM 93 W 1 18012017 I I INCL ITEMS 2 3 V V RPO DEFINITIONS J65 BRAKE SYSTEM POWER FRONT AND REAR DISC I T 1993 GENERAL MOTORS SERVICE PARTS OPERATIONS BU CK 45W 4 000 GROUP 4 1 12 2 93