4 SPEED MANUAL TRANSMISSION 1 4 303 BLO CK FORK PIECE PIN Transmission Gaarshift Con t 85 87 ST1 MC9 14050759 1 38 75 FORK 1ST 2ND SHIFT PG4 3 9 N 85 87 ST1 MC9 V 14053312 1 38 75 FORK 3RD 4TH SHIFT PG4 3 5 82 87 S1 M73 94238745 1 2 40 PIECE REV SHIFT PG4 49 4 82 87 S1 M73 94171541 3 4 r 62 PIN SPR SHIFT ARM PG4 49 8 Q 82 84 ST1 M77 15529642 1 7 10 PIN REV SHIFT LEVER PIV PG4 3 51 h 85 87 ST1 MC9 15529642 1 7 10 PIN SHIFT LEVER PIVOT PG4 3 51 4 307 PIN PLATE PLUG SLEEVE Transmission Gaarshift I 82 87 S 1 M73 I 94024689 2 78 PIN LK INTLK G S PG4 49 19 82 87 S1 M73 94030807 2 1 05 PIN REV ROD DOWEL PG4 49 11 82 84 ST1 M77 14050763 1 2 85 PLATE TRANS GR SEL INTLK PG4 3 8 85 87 ST1 MC9 Q 14050763 1 2 85 PLATE GR SEL INTLK PG4 3 8 82 87 S1 M73 94239543 1 76 PLUG INTER LK HOLE PG4 49 20 82 84 ST1 M77 14105942 1 1 80 SLEEVE TRANS SHIFT LEVER DMP PG4 4 65 85 S1 2 2S MC9 15537026 1 2 40 SLEEVE SHIFT LEVER DMP I 85 87 ST1 MC9 14105942 1 I 1 80 SLEEVE SHIFT LEVER DMP PG4 4 65 4 309 PLUG RAIL SHAFT Transmission Shifter Shaft 82 87 S1 M73 1 94024830 2 1 50 PLUG SHIFT ROD PG4 7 4 83 84 S1 2 2S M77 15578207 1 32 75 RAIL TRANS SHIFT 85 S1 2 2S MC9 15578207 1 32 75 RAIL TRANS SHIFT 82 87 S1 M73 94238748 1 9 30 SHAFT ARM G S REV PG4 49 7 82 87 S1 M73 94243484 1 21 15 SHAFT G S TOP 3RD PG4 49 5 82 87 S1 M73 94243465 1 21 30 SHAFT G S 1ST 2ND PG4 49 6 82 83 ST1 M77 14071776 1 46 25 SHAFT SHIFT 84 S1 2 2S M77 2ND DES 14053320 1 27 50 A SHAFT SHIFT CODE GAP PG4 3 4 84 S1 2 25 M77 1ST DES 15546819 1 35 75 SHAFT SHFT PG4 3 4 84 ST1 1 9 2 0 2 8 M77 15546819 1 35 75 SHAFT SHFT PG4 3 4 85 S1 2 2S MC9 14053320 1 27 50 SHAFT SHIFT PG4 3 4 85 87 ST1 2 5E 2 8B R MC9 15548819 1 35 75 SHAFT SHIFT PG4 3 4 4 311 BALL GASKET INSERT PIN PLATE SHIFT BIAS SPRING Transmission Shift Shaft Datant 82 87 S1 M73 94020020 3 48 BALL G S DETENT PG4 49 16 83 S1 M73 2ND DES 94030786 2 37 BALL BACKLASH INHIBITOR NOT USED 1ST DES PG4 8 67 r 84 87 S1 M73 94030786 2 37 BALL BACKLASH INHIBITOR PG4 8 67 4 82 87 S1 M73 94024659 I 1 1 25 GASKET DETENT SPR PLT PG4 49 21 82 84 ST1 M77 10065278 4 89 INSERT TRANS SHIFT FORK PG4 3 10 85 87 ST1 MC9 10065276 4 89 INSERT TRANS SHIFT FORK PG4 3 10 82 87 S1 M73 94238769 2 1 55 PIN SHAFT ARM TO BLOCK PG4 49 14 I I 82 87 S1 M73 94246503 1 4 60 PLATE DETENT SPR PG4 49 22 82 84 ST1 M77 14050761 2 18 15 PLATE SHIFT FORK PG4 3 6 85 87 ST1 MC9 14050761 2 18 15 PLATE SHIFT FORK PG4 3 6 85 S1 MC9 15546808 1 29 25 SHIFT BIAS 5TH REV PG4 28 75 85 S1 MC9 15546807 1 25 75 SHIFT BIAS IST 2ND PG4 27 13 I 82 S1 M73 1ST DES 94026167 1 62 SPRING DETENT BALL USED UP TO VIN V 6744 PG4 49 17 82 S1 M73 2ND DES 94258933 3 84 SPRING DETENT BALL USED AFTER VIN 6744 PG4 49 17 82 84 ST1 M77 14050769 1 79 SPRING DETENT PG4 3 60 83 87 S1 M73 94258933 3 84 SPRING DETENT BALL PG4 49 17 85 87 ST1 MC9 14050789 1 79 SPRING DETENT PG4 3 60 y 4 31 7 COVER EXTENSION STUD Transmission Casa 82 87 S1 M73 94238723 1 202 00 COVER RR W BUSH 8 SEAL PG4 7 21 83 S1 M77 O 1 4071787 1 187 00 EXTENSION TRANS PG4 11 66 84 S1 M77 1ST DES 14071787 1 187 00 EXTENSION TRANS CODES 4NB 4NC I 4NJ 4NM PG4 11 66 84 S1 M77 2ND DES 15529643 1 187 00 EXTENSION W PLATE TRANS CODES GAP GAR GAT PG4 16 73 84 S1 2 2S MC9 15546820 1 202 00 EXTENSION W BUSH PLATE PLUG r PG4 4 69 85 S1 2 2S MC9 15546797 1 202 00 EXTENSION W BUSH PLATE PLUG PG4 4 69 85 87 S1 2 5E 2 88 R MC9 15546820 1 202 00 EXTENSION W BUSH PLATE PLUG PG4 4 69 I 84 87 S1 M73 94129883 2 96 STUD TlRANS CASE PG4 7 2 4 318 GASKET SEAL Transmission Roar Main Bearing 82 87 S1 M73 I 94238767 2 4 25 GASKET CASE RR COVER PG4 7 11 V 82 87 S1 M73 3932255 1 N L SEAL EXT OIL PG4 7 24 82 84 S1 M77 14053338 1 5 80 SEAL EXT RR OIL PG4 4 68 A 82 87 S1 M73 94238096 1 7 05 SEAL RR COVER OIL PG4 7 24 1990 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52S 4 303 4 31 8 4 16 I REV 10 90