4 SPEED MANUAL TRANSMISSION 4 351 GEAR Transmission Main Drive 1CIutch 85 89 G1 2 MY6 14039072 1 184 00 GEAR MAIN DR PG4 7 9 4 85 86 G1 2 3 M20 15588219 1 166 00 GEAR MAIN DR 17 TEETH 4 352 BEARING ROLLER Mainshaft Front Pilot and Main Drive Gear 85 87 G1 2 3 M20 9422666 17 3813 BEARING TRANS MAINSHAFT PILOT ROLLER PG4 3 6 85 89 G1 2 MY6 9419284 16 1 00 ROLLER MAINSHAFT O4 520 PG4 7 10 4 354 SEAL Transmission Main Drive Gear Bearing CIutch 85 89 G1 2 MY6 3987936 1 3 55 SEAL MAIN DR GR BRG OIL PG4 3 7 85 86 G1 2 3 M20 3987937 1 4 00 SEAL CLU GEAR BRG OIL 4 355 BEARING Treinsmission Main Drive Gear CIutch 85 89 G1 2 MY6 14095509 1 36 25 BEARING MAIN DR GR PG4 7 6 4 356 BOLT RETAIINER RING Transmission Main Drive Gear Bearing CIutch 85 89 G1 2 MY6 14095698 1 1 15 BOLT CLU GEAR BRG RET PG4 7 2 85 86 G1 2 3 M TRNS M20 3920784 4 41 BOLT INPUT SHF BRG RET 85 89 G1 2 MY6 14039085 1 30 75 RETAINER CLU GR BRG PG4 7 2 85 86 G1 2 3 M20 3901178 1 N L RETAINER CLU GR BRG 85 86 G1 2 3 M20 3901166 1 248 RING CLU GEAR RLR BRG OIL RET 04 384 1 4 358 GASKET Transmission Main Drive Gear Bearing Retainer 85 89 G1 2 MY6 14071754 1 11 25 GASKET MAIN DR GEAR BRG RET PG4 7 3 4 376 RING Transmission Main Drive Gear Bearing CIutch 85 89 G1 2 MY6 3709351 AR 88 RING TRANS MAIN DR GR RET 2 21MM PG4 3 8 85 89 G1 2 MY6 3709352 AR V82 RING MAIN DR GR BRG RET 2 29MM PG4 7 5 85 89 G1 2 MY6 3709353 AR 82 RING MAIN DR GR BRG RET 2 36MM PG4 7 5 85 89 G1 2 MY6 3709354 AR 812 RING MAIN DR GR BRG RET 2 44MM PG4 7 5 85 89 G1 2 MY6 14095689 1 93 RING CLU GEAR BRG RET PG4 7 11 4 380 SYNCHRONIIZCER Transmission Siynchronizer 85 89 G1 2 MY6 14067516 1 161 00 SYNCHRONIZER TRANS 1ST 2ND SPEED PG4 7 55 85 89 G1 2 MY6 140793 70 1 1051 00 SYNCHRONIZER 3RD 4TH SPEED PG4 7 47 4 383 RING Transmission Synchronizer 85 89 G1 2 MY6 140391100 4 28 75 RING SYN BLOCKING PG4 7 45 85 89 G1 2 MY6 14095691 1 1 10 RING 3RD 4TH SYN RET PG4 7 46 85 89 G1 2 MY6 15546513 4 76 RING SYN RETAINING O4 384 PG4 8 56 4 384 KEY RING Transmission Synchronizer 85 89 G1 2 MY6 140390193 6 1 25 KEY FWD SYN CLU PG4 7 49 85 86 G1 2 3 M20 39011166 1 48 RING 3RD 4TH SPD CLU HUB RET 4 3951 GEAR Transmission Second Speed 85 89 G1 2 MY6 14039076 1 115 00 GEAR 2ND SPEED PG4 7 54 4 399 BUSHING Transmission Mainshaft 85 86 G1 2 3 M TRNS M20 39322153 1 9 35 BUSHING 2ND GR 4 403 SHAFT Transmission Main Drive 85 89 G1 2 MY6 140533161 1 174 00 SHAFT MAIN PG4 7 5 I 4 408 BEARING Transmission Mainshaft Rear Output 85 89 G1 2 MY6 14095504 1 60 75 BEARING MAIN SHAFT PG4 EI 59 4 412 RING Transmission Rear Bearing and Mainshaft 85 89 G1 2 MY6 37093151 AR 88 RING MAINSHAFT RR BRG RET 2 21MM 04 376 85 89 G1 2 MY6 37093152 AR 82 RING MAINSHAFT RR BRG RET 2 29MM 04 376 85 89 G1 2 MY6 37093153 AR 82 RING MAINSHAFT RR BRG RET 2 36MM 04 376 85 89 G1 2 MY6 37093154 AR 82 RING MAINSHAFT RR BRG RET 2 44MM 04 376 85 89 G1 2 MY6 140956197 1 3 25 RING RR BRG LOC PG4 8 58 g 1991 GENERAL MOTORS SERVICE PARTS PERAT ONS LT TRUCK 526 j 1 91 4 21 4 351 4 412