FUEL EXHAUST CARBURETl0N GMC GROUP 3 880 C n t 78 C1 03 350 w Fed exc H D C F44 Diesel 78 G 1 350 exc Calif High Alt 4 343752 1 1 54 GASKET E G R vlv 4 8 9245 78 C1 03 06 18 K1 350 w M T Alt Calif 78 CK2 06 350 w M T Calif 7B CK2 O3 350 w Calif 78 G1 2 3 350 w Alt Calif exc Dual Whl 78 K1 2 400 w Calif 78 G2 3 400 w Calif anu Dual Rr Whl 78 P2 350 w A T Calif 14025577 1 GASKET EGR vlv 8 9245 78 C 03 250 exc F44 Calif An 78 G1 250 exc Calif Alt 3855524 1 33 LOCK EGR vlv cla 8 91930 73 C 1 454 73 C 2 Sub 454 9427897 1 40 PLUG E G R 8 9348 78 CKGP 1 2 3 w Calif 458617 l 3 15 SPACER E G R vlv 74 78 All Blazer Jimmy 250 338187 1 50 STUD E G R vlv clamp 8 8388G 75 Blazer C Jimmy C 250 75 77 C 1 Cab 250 exc 11 0 Chassis 75 77 G 1 250 78 All 382919 A R 35 STUD plain 18 x 24 x 1 8 83986 73 77 CKGP 1 2 3 Blaxer Jimmy M H C 8272766 1 33 TEE air inj dvtr valve sig pips 8 9399R 74 C 1 2 454 75 78 C 1 Cab 454 exc H D Chassis Calif 75 78 CP 1 2 3 w NB 2 454 353043 1 1 80 TUBE E G R 8 8400 78 All 250 w Integral Hd 473383 1 2 10 TUBE throttle hare 8 9215 3 685 CONVERTER ASM COMPOUND HOSE KIT PACKAGE PIPE gi ASM PLUG Exhaust System Catalytic NOTE Refer to Group 3 701 chart ar the and of the 31700 Group containing converter assemblies For years 1973 through 1977 NOTE I This is a threaded plug NOTE 2 This plug is threadless 78 Cl 03 250 350 exc F44 78 G1 78 C1 03 454 Calif exc F44 C1 03 305 8998218 1 218 00 CONVERTER ASM ctltc I2 7010 78 C1 03 250 454 350 w H D C F44 Calif V 78 C1 2 06 454 350 Calif C105 350 Calif 78 C2 03 250 454 350 Calif 78 K1 2 400 350 Calif 78 G2 3 w Calif exc Dual Rr Whl 78 P2 w Calif 8988685 1 244 00 CONVERTER ASM ctltc 12 7010 75 All Blazer Jimmy w UFC 8998220 A R 12 15 COMPOUND ctlw conv fill plug anti seize 12 7025 75 C l Cab Ellazsr C Jimmy C 350 exc I D Chassis 78 77 C I Cab NB 2 w 4BC 350 sxc H D Chassis 77 C I Cab w H A P E C 350 3570I0 1 8 10 HOSE ctltc cunv air pipe 8 9270 75 78 All Blazer Jimmy w 260 Conv 8898484 1 48 00 KIT repair 12 7005 WAREHOUSING AND DISTRIBUTIONDIVISION OF GENERAL MOTORS CORPOFlAT 0N LT TRUCK 51 REV 2 83 3 87 3 680 3 685