Part No. & Part Description
Price & Qty.
Part No. &
Part Description
BEARING, Transmission Countergear
GASKET, Transmission Main Drive Gear Bearing Retainer
COVER, Power Take Off Assembly-Transfer Case
SYNCHRONIZER, Transmission Synchronizer
BEARING, Transmission Mainshaft Center/Rear
RING, Transmission Synchronizer
23049987RING, 3RD & 4TH GEAR SYN RETAINER(44X52X1.95)(4.416)
23049988RING, 3RD & 4TH GEAR SYN RETAINER(44X52X1.90)(4.416)
23049989RING, 3RD & 4TH GEAR SYN RETAINER(44X51X1.85)(4.416)
3901166RING, 3RD & 4TH SPEED CLUTCH HUB RETAINING(*KIT2)
BEARING, Transmission Reverse Idler Gear/Shaft
PIN, Transmission Internal Shift
2462226PIN, 5TH SHIFT FORK(SHIFT ROD INTERLOCK (5 REQUIRED))(*KIT1,KIT2)
HUB, Transmission Synchronizer
BUSHING, Transmission Shift Shaft Detent
23049803BUSHING, SHIFT SHAFT DETENT(5TH & REVERSE DETENT (ALSO PART OF 200)(2 REQUIRED)
PLUG, Transmission Shift Shaft Detent
BEARING, Transmission Gear
8672405BEARING, W/SLINGER, MAIN DRIVE GEAR (INCLUDE 42,44)(1990 2ND DESIGN,1991)(*KIT2)
SENSOR, Computer Control Sensors
SEAL, Transmission Main Drive
MAGNET, Transmission Case
PLUNGER, Transmission Shift Shaft Detent
SEAL, Transmission Extension
15595878SEAL, U JOINT FRONT FLANGE(MANUAL TRANSMISSION(M20))(*KIT1)
TRANSMISSION KIT, Transmission Overhaul
8672987TRANSMISSION KIT, MANUAL(SERVICE OVERHAUL)(1990-91)(INCLUDE 2,5-7,11,16,22-24,29-31,33,34,38,41-44,46-48,55,65)
8672987TRANSMISSION KIT, MANUAL(SERVICE OVERHAUL)(1988-89)(INCLUDE 2,5-7,16,22-24,29-31,33,34,38,41-44,46-48,55,65)
WASHER, Transmission Countershaft Gear
WASHER, Transmission Rear Bearing & Mainshaft
PAD, Transmission Internal Shift Fork
GEAR, Transmission Main Drive(Clutch)
8672408GEAR, TRANS CLUTCH(17 TEETH)(1988-89,1990 1ST DESIGN)(MUST ALSO USE 08672405 BEARING & DISCARD OIL SLINGER)
8672408GEAR, MAIN DRIVE (17 TEETH)(1990 2ND DESIGN,1991)(*01)
EXTENSION, Transmission Case
SHAFT, Transmission Internal Shift Shaft
8672260SHAFT, 3RD & 4TH SHIFT(1988,1989 1ST DESIGN W/9KDU)(INCLUDE 107,108,109)
8672260SHAFT, 3RD & 4TH SHIFT(1989 2ND DESIGN W/0KDU,1990-91)(INCLUDE 107,108,109)
SHAFT, Transmission Reverse Idler
8672200SHAFT, REVERSE IDLER (1989 2ND DESIGN W/0KDU,1990-91)
GEAR, Transmission Countershaft
PIN, Transmission Shift Shaft Detent
BEARING, Transmission Main Drive Gear(Clutch)
8672061BEARING, W/SLINGER, MAIN DRIVE GEAR (1988-89,1990 1ST DESIGN)(*KIT2)
SHIM, Transmission Main Shaft Gear Retaining
15636196SHIM, MAIN SHAFT BEARING(.0176-.0186)(AS REQUIRED)(4.412)
15636198SHIM, MAIN SHAFT BEARING(.0231-.0241)(AS REQUIRED)(4.412)
15636199SHIM, MAIN SHAFT BEARING(.0253-.0263)(AS REQUIRED)(4.412)
SHIM, Transmission Countershaft Gear
15636208SHIM, COUNTER GEAR BEARING(.0150-.0160)(AS REQUIRED)
15636210SHIM, COUNTER GEAR BEARING(.0194-.0204)(AS REQUIRED)
15636212SHIM, COUNTER GEAR BEARING(.0238-.0248)(AS REQUIRED)
15636213SHIM, COUNTER GEAR BEARING(.0260-.0270)(AS REQUIRED)(4.423)
15636207SHIM, COUNTER GEAR BEARING(.0128-.0138)(AS REQUIRED)(4.423)
15636209SHIM, COUNTER GEAR BEARING(.0172-.0182)(AS REQUIRED)(4.423)
GEAR, Transmission Second Speed
SPRING, Transmission Synchronizer
3866646SPRING, 1ST & 2ND SPEED CLUTCH KEY FRONT & REAR (2 REQUIRED)(*KIT2)
GEAR, Transmission Third & Fourth Gear
LEVER, Transmission Internal Shift
8672979LEVER, SHIFT SHAFT (REMANUFACTURE)(1988-89)(INCLUDE 230,231)(*02)
NUT, Transmission Rear Bearing and Mainshaft
WASHER, Transmission Reverse Idler Gear
8672203WASHER, REV IDLER GEAR THRUST(SPECIAL)(1989 2ND DESIGN W/0KDU,1990-91)(*KIT1)
SHAFT, Transmission Mainshaft
12382817SHAFT, MAIN (C W/MT8)(USE TOGETHER WITH 12546679 TONE WHEEL)
RETAINER, Transmission Mainshaft Bearing
12388895RETAINER, INPUT SHAFT BEARING(1991 W/CODES CAU,KMU,UEU,UJU,CCU,KDU,CHU)(INCLUDE 206-208)
SHAFT, Transmission Countershaft
GEAR, Transmission First/Reverse Gear
FORK, Transmission Internal Shift
BEARING, Transmission Internal Shift Shaft
PIN, Transmission Interlock
GEAR, Transmission Reverse Idler
8672202GEAR, REV IDLER(24T)(1989 W/TRANS CODES OCCU,CODU- 2ND DESIGN)
WASHER, Transmission Third & Fourth Gear
WASHER, Transmission First/Reverse Gear
23049744WASHER, THRUST (SPECIAL)(1988,1989 1ST DESIGN W/9KDU)(M40.1X57X4.95)(*KIT1)
RING, Transmission Rear Bearing and Mainshaft
3866655RING, MAIN DRIVE GEAR BEARING RETAINING (3.7 INCH DIAMETER)(*KIT2)
3901152RING, MAIN DRIVE GEAR RETAINING (2.0 INCH DIAMETER)(*KIT2)
15635315PIN, COVER (DIAMETER 468, LEN .485)(2 REQUIRED)
WASHER, Transmission Mount and Support
SLEEVE, Transmission Shift Shaft Detent
SHAFT, Transmission Main Drive(Clutch)
15637304PLUG, AUTO SQUARE HEAD PIPE (3/4X14 STEEL ZINC COATED (DIPPED OR PLATED))(AS REQUIRED)
23049822PLUG, CUP (15.15 OUTSIDE DIAMETER,5 THICK,STEEL,ZINC COATED (DIPPED OR PLATED))(AS REQUIRED)
BOOT, Floor Mounted Control Lever
PLUG, Engine Clutch Housing
15677601PLUG, CLUTCH FORK ACCESS HOLE(1)(1988-91)K(1,2)(MG5)
TRANSMISSION, Manual (4 Speed)
SPRING, Transmission Internal Shift
551946SPRING, 3RD & 4TH SHIFT LEVER DETENT BALL (AS REQUIRED)
23049525NUT, NUT, HEXAGON JAM (M16X1.5X8,4T, PLAIN, LH THREAD)(AS REQUIRED)
GASKET, Transmission Case
RING, Transmission Countershaft Gear
2600236RING, COUNTER GEAR REAR BEARING RETAINING(*KIT2)
SPRING, Transmission Interlock
HOUSING, Engine Clutch Housing
RING KIT, Transmission Main Shaft Gear Retaining
9438486SCREW, SCREW, PAN HEAD SLOTTED (#10-24X3/8)(AS REQUIRED)
Standard Parts
11515755BOLT, HEXAGON W/CONICAL WASHER (M8X1.25X16, 9.8 PHOSPHATE ZINC ORGANIC)(AS REQUIRED)
15531205WASHER, FLAT,13.4X24.8X2.9,FLATS ON SIDES FOR INSIDE DIAMETER,HARD,PLATE STEEL(AS REQUIRED)
11501033NUT, HEXAGON PRVG TORQUE (M10X1.5, 10 CADMIUM)(AS REQUIRED)
11503867BOLT, HEXAGON (M6X1X20, 9.8 PHOSPHATE ZINC ORGANIC)(ALSO PART OF 237)(AS REQUIRED)
11092971BOLT, HEXAGON SOCKET (M8X1.25X50,12.9 PHOSPHATE ZINC ORGANIC)(AS REQUIRED)
11561048BOLT, HEX FLANGED HEAD (3/8-16X5/8, 280M PHOSPHATE ORGANIC)(AS REQUIRED)
11509419BOLT, HEXAGON (M10X1.5X25, 10.9 PHOSPHATE ORGANIC)(AS REQUIRED)
11509417BOLT, HEXAGON (M6X1X25, 9.8 PHOSPHATE ZINC ORGANIC)(ALSO PART OF 237)(AS REQUIRED)
12338111PIN, SPRING (3/16X1 1/8, STAINLESS STEEL PLAIN)(TYPE A)(AS REQUIRED)
444746PLUG, SQUARE HEAD FILL & DRAIN (1/2-14)(AS REQUIRED)(*KIT2)
11513805BOLT, HEXAGON (M8X1.25X22,FULL THREAD,9.8)(AS REQUIRED)
14080573PLUG, CUP (17OD,1 THICK,5 DEEP,1010 STEEL)(AS REQUIRED)
23047261BOLT, HEX FLANGED HEAD (3/8X16X3.75, 280M, PLATE STEEL)(AS REQUIRED)
23049820PLUG, (M12,3 THICK,STEEL,ZINC COATED (DIPPED OR PLATED))(AS REQUIRED)
273937PIN, SPRING,1/8X1 1/4,STEEL,ZINC COATED(AS REQUIRED)(*KIT1,KIT2)
9442300SCREW, ,HEXAGON W/WASHER 5/16-18 X 1 PO(AS REQUIRED)(4.720)
Genuine GM Parts, the Right Choice
GMPartsGiant.com offers the wholesale prices for genuine 1991
GMC K1500 parts. Parts like Manual Transmission are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel. Model Code: K1500 EXTENDED CAB LONG BOX, K1500 EXTENDED CAB STANDARD BOX, K1500 REGULAR CAB LONG BOX, K1500 REGULAR CAB STANDARD BOX.