Manual Transmission Case & Related Parts fit your 1985 GMC C2500

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1985 GMC C2500

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Transmission - Automatic

Parts Questions

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Recommended

Part No. & Part Description

Price & Qty.

Part No. &
Part Description

14014559
SWITCH, Back Up Lamp, SWITCH, BACK UP LAMP
$30.46 $16.14
1
Add To Cart

VENT, Transmission Case

25892279
VENT, TRANS(4.510)
$4.33 $2.44
5
Add To Cart
8652580
VENT, TRANS

12547312
COVER, Transmission Power Take-Off, COVER, POWER TAKE OFF (2 REQUIRED)
$17.07 $10.31
1
Add To Cart

GASKET, Transmission Main Drive Gear Bearing Retainer

12337932
GASKET, MAIN DRIVE GEAR BEARING RETAINER(*KIT1,KIT2)
12355687
GASKET, MAIN DRIVE GEAR BEARING RETAINER
14071754
GASKET, MAIN DRIVE GEAR BEARING RETAINER

RING, Transmission Main Drive Gear Bearing(Clutch)

12470554
RING, MAIN DRIVE GEAR & MAIN SHAFT BEARING RETAINER (2.29MM)
$10.22 $7.84
1
Add To Cart
14095689
RING, MAIN SHAFT PILOT BEARING RETAINER
3709351
RING, MAIN DRIVE GEAR BEARING RETAINER (2.21MM)(AS REQUIRED)
3709351
RING, MAIN DRIVE GEAR & MAIN SHAFT BEARING RETAINER (2.21MM)
3709353
RING, MAIN DRIVE GEAR & MAIN SHAFT BEARING RETAINER (2.36MM)
3901152
RING, MAIN DRIVE GEAR RETAINING (2 INCH DIAMETER)(*KIT2)
3901166
RING, MAIN DRIVE GEAR PILOT BEARING RETAINER OIL(*KIT2)
590849
RING, MAIN DRIVE GEAR BEARING LOCATOR

HUB, Transmission Synchronizer

3901164
HUB, 3RD & 4TH SPEED CLUTCH
$135.23 $49.28
1
Add To Cart
3946776
HUB, 1ST & 2ND SPEED CLUTCH

9422666
BEARING, Transmission Mainshaft Front Pilot to Main Drive Gear, BEARING, MAIN SHAFT BEARING (14 REQUIRED)

9422666
BEARING, Mainshaft Front Pilot and Main Drive Gear, BEARING, MAIN SHAFT PILOT ROLLER (17 REQUIRED)(*KIT2)

KEY, Transmission Synchronizer

3871250
KEY, 1ST & REVERSE,2ND & 3RD SYNCHRONIZER(6 REQ)(1985 1ST DESIGN)(*01)
$12.60
1
Add To Cart
3866358
KEY, 1ST & 2ND,3RD & 4TH SPEED CLUTCH (6 REQUIRED)(*KIT2)
14039093
KEY, FORWARD SYNCHRONIZER CLUTCH

RING, Transmission Synchronizer

3859027
RING, SYNCHRONIZER BLOCKING (3 REQUIRED)
$97.54 $48.37
1
Add To Cart
3950367
RING, 2ND SPEED GEAR SYNCHRONIZER
14039100
RING, SYNCHRONIZER BLOCKING
14095691
RING, 3RD & 4TH SYNCHRONIZER RETAINING
3859025
RING, SYNCHRONIZER RETAINER (2 REQUIRED)
3901166
RING, 3RD & 4TH SPEED CLUTCH HUB RETAINING(*KIT2)

FORK, Transmission Internal Shift

335199
FORK, SHIFT 3RD & 4TH
$32.26 $22.45
1
Add To Cart
3858997
FORK, 1ST & REVERSE,2ND & 3RD SHIFT (2 REQUIRED)
$31.16 $21.68
1
Add To Cart
3901137
FORK, TRANS 1ST & 2ND SHIFT
3901138
FORK, TRANS 3RD & 4TH SHIFT
8672666
FORK, TRANS REVERSE SHIFT (1985-89)
8672666
FORK, TRANS REVERSE SHIFT (1990-91)

3932253
BUSHING, Transmission Second Speed Gear, BUSHING, 2ND SPEED GEAR
$50.15 $24.87
1
Add To Cart

3932274
BUSHING, Transmission Main Shaft Gear Retaining, BUSHING,3RD GEAR
$72.59 $35.98
1
Add To Cart

TRANSMISSION KIT, Transmission Overhaul

8672987
TRANSMISSION KIT, MANUAL(SERVICE OVERHAUL)(1990-91)(INCLUDE ITEMS #2,5-7,11,16,22-24,29-31,33,34,38,41-44,46-48,55,65)
$418.97 $262.69
1
Add To Cart
8672987
TRANSMISSION KIT, MANUAL(SERVICE OVERHAUL)(1985-89)(INCLUDE ITEMS #2,5-7,16,22-24,29-31,33,34,38,41-44,46-48,55,65)
$418.97 $262.69
1
Add To Cart

3929530
SEAL, Back Up Lamp, SEAL,BACK UP LAMP SWITCH(O RING)

BEARING, Transmission Mainshaft Center/Rear

12336889
BEARING, MAIN SHAFT REAR
$91.92 $23.95
1
Add To Cart
8672404
BEARING, MAIN SHAFT REAR(*KIT2)
$147.31 $92.54
1
Add To Cart
14095504
BEARING, MAIN SHAFT

BEARING, Transmission Main Drive Gear(Clutch)

8672405
BEARING, W/SLINGER, MAIN DRIVE GEAR (INCLUDE ITEMS #42,44)(1990 2ND DESIGN,1991)(*KIT2)
$148.85 $54.24
1
Add To Cart
12350115
BEARING, MAIN DRIVE GEAR
14095509
BEARING, W/SNAP RING, MAIN DRIVE GEAR
8672061
BEARING, W/SLINGER, MAIN DRIVE GEAR (INCLUDE ITEMS #42,44)(1985-86)(*KIT2)
8672061
BEARING, W/SLINGER, MAIN DRIVE GEAR (INCLUDE ITEMS #42,44)(1988-89,1990 1ST DESIGN)(*KIT2)

12471607
MAGNET, Transmission Case, MAGNET, TRANS CHIP COLLECTOR
$13.57 $8.63
1
Add To Cart

GEAR, Transmission First/Reverse Gear

3859015
GEAR, REVERSE
$150.36 $78.49
1
Add To Cart
14039075
GEAR, 1ST SPEED
3859014
GEAR, 1ST SPEED
3901170
GEAR, REVERSE
476766
GEAR, W/PINION, 1ST SPEED

GEAR, Transmission Third & Fourth Gear

3901161
GEAR, 3RD SPEED
$272.83 $135.30
1
Add To Cart
14039077
GEAR, 4TH SPEED

SPRING, Transmission Synchronizer

3866359
SPRING, 3RD & 4TH SPEED CLUTCH KEY (2 REQUIRED)(*KIT2)
$12.60
1
Add To Cart
14039094
SPRING, FORWARD CLUTCH KEY
368055
SPRING, 1ST & REVERSE,2ND & 3RD SYNCHRONIZER (4 REQUIRED)
3866646
SPRING, 1ST & 2ND SPEED CLUTCH KEY FRONT & REAR (2 REQUIRED)(*KIT2)

ROLLER, Transmission Countershaft Gear

14039096
ROLLER, COUNTER GEAR BEARING (76 REQ'D)
$13.05
1
Add To Cart
435847
ROLLER, COUNTER GEAR BEARING (54 REQUIRED)

SEAL, Transmission Rear Main Bearing

15595878
SEAL, U JOINT, FRONT FLANGE(MANUAL TRANSMISSION(M20))(*KIT1)
$16.90 $12.60
1
Add To Cart
8673526
SEAL, EXTERNAL OIL
$10.80 $6.53
1
Add To Cart

SEAL, Gearshift Cover to Shaft

1636970
SEAL, 1ST & REVERSE SHIFT (2 REQUIRED)
$6.83 $2.82
1
Add To Cart
3831716
SEAL, 2ND & 3RD SHIFT SHAFT (PART OF #56)
$3.45 $2.19
1
Add To Cart

23046538
WHEEL, Speedometer Drive, WHEEL,VEHICLE SPEED SENSOR RELUCTOR(M20)
$53.68
1
Add To Cart

336978
BOLT, Parking Brake Cable, BOLT, TRANS CONTROL SHIFT SHAFT LEVER (2 REQUIRED)(1985-1986)
$23.25
1
Add To Cart

336978
BOLT, Transmission Power Take-Off, BOLT, POWER TAKE OFF COVER (12 REQUIRED)
$23.25
1
Add To Cart

346399
CAM, Transmission Shift Shaft Detent, CAM, DETENT (2 REQUIRED)
$12.60
1
Add To Cart

3707189
RING,, RING, MAIN SHAFT REAR RETAINER
$13.05
1
Add To Cart

3743449
ROLLER, Transmission Mainshaft Front Pilot to Main Drive Gear, ROLLER, MAIN SHAFT BEARING (14 REQ'D)(4.520)(1985-86 C M62,M64)(1987 R M64)
$12.60
1
Add To Cart

GASKET, Rear Bearing Retaining

3876752
GASKET, EXTERNAL
$2.49 $0.90
1
Add To Cart
8672160
GASKET, ADAPTER TO TRANS(*KIT1)

3901165
CLUTCH, Transmission Synchronizer, CLUTCH, 3RD & 4TH SPEED
$207.81 $75.71
1
Add To Cart

3920784
BOLT, Transmission Main Drive Gear Bearing(Clutch), BOLT, W/LOCK WASHER, MAIN DRIVE GEAR BEARING RETAINER (4 REQUIRED)
$12.60
1
Add To Cart

SEAL, Transmission Main Drive

3987936
SEAL, MAIN DRIVE GEAR BEARING OIL(PART OF #3)
$12.60
1
Add To Cart
3987937
SEAL, MAIN DRIVE GEAR BEARING OIL(*KIT1,KIT2)

3987936
SEAL, Main Drive Gear Bearing Oil Retaining, SEAL, MAIN DRIVE GEAR BEARING OIL(PART OF #1)
$12.60
1
Add To Cart

3993036
CONE, Transmission Synchronizer, CONE, 3RD & 4TH SPEED GEAR SYNCHRONIZER (2 REQUIRED)
$82.84 $41.09
1
Add To Cart

BUSHING, Transmission Case Extension

6260048
BUSHING, EXTERNAL (PART OF #14)
$7.32 $4.63
1
Add To Cart
6260048
BUSHING, EXTENSION (CROSS RECESS)(PART OF #64)
$7.32 $4.63
1
Add To Cart

6261781
CLIP, Speedometer Drive Gear, CLIP, SPEEDOMETER DRIVE GEAR
$9.79 $6.22
1
Add To Cart

BEARING, Transmission Countershaft Gear

8672404
BEARING, COUNTER GEAR FRONT (5.855)(1985-86)(*KIT2)
$147.31 $92.54
1
Add To Cart
8672404
BEARING, COUNTER GEAR REAR(*KIT2)
$147.31 $92.54
1
Add To Cart

8673526
SEAL, Rear Bearing Retaining, SEAL, EXTENSION OIL (CROSS RECESS)(PART OF #64)
$10.80 $6.53
1
Add To Cart

9419284
ROLLER, Mainshaft Front Pilot and Main Drive Gear, ROLLER, MAIN SHAFT BEARING (16 REQ'D)(4.520)(MY6)
$13.05
1
Add To Cart

10181246
GASKET, Transmission Case, GASKET, COVER

117920
PLUG, Expansion, PLUG, EXPANSION (1 1/16, STEEL)(ALSO PART OF #7)

WASHER

120393
WASHER, FLAT (11/32 IDX11/16 ODX1/16 THICK)
120395
WASHER, FLAT (.406X.812X.065 ZINC)(AS REQUIRED)

RING, Transmission Countershaft Gear

12337982
RING, CLUTCH COUNTER GEAR RETAINING(*KIT2)
2600236
RING, COUNTER GEAR REAR BEARING RETAINING(*KIT2)
3866346
RING, COUNTER GEAR RETAINING(*KIT2)

12338118
SLINGER, Transmission Main Drive Gear Bearing, SLINGER, MAIN DRIVE GEAR BEARING OIL (ALSO PART OF ITEM #43)(*KIT2)

12388448
NUT, Hexagon Flange Lock, NUT, SPECIAL BEARING (1 9/16-18)(4 SLOTS)(ROUND)

SPACER, Transmission Countershaft Gear

14020811
SPACER, COUNTER GEAR (1.56 INCH LONG)
14039099
SPACER, COUNTER GEAR BEARING (3/32)

SHAFT, Transmission Mainshaft

14020859
SHAFT, MAIN (32 TEETH OUTPUT)(K/V)
14053361
SHAFT, MAIN (CROSS RECESS)
3932265
SHAFT, MAIN (35 TEETH OUTPUT)(CROSS RECESS)

GEAR, Transmission Second Speed

14039076
GEAR, 2ND SPEED
3901158
GEAR, 2ND SPEED

RETAINER, Transmission Main Drive Gear Bearing(Clutch)

14039085
RETAINER, MAIN DRIVE GEAR BEARING (INCLUDE ITEM #4,7)
3901178
RETAINER, TRANS MAIN DRIVE GEAR BEARING
3920738
RETAINER, MAIN DRIVE GEAR BEARING (INCLUDE #7)

SHAFT, Transmission Countershaft

14039095
SHAFT, COUNTER GEAR
3859005
SHAFT, COUNTER GEAR

SHAFT, Transmission Reverse Idler

14039101
SHAFT, REVERSE IDLER
3901144
SHAFT, REVERSE IDLER

14039102
GASKET, Transmission Control, GASKET, CONTROL LEVER HOUSING

14039105
RETAINER, Gear Shifter, RETAINER, SHIFT SHAFT SEAL

14039106
GASKET, Transmission Rear Main Bearing, GASKET, EXTENSION

GEAR, Transmission Reverse Idler

14053370
GEAR, REVERSE IDLER (INCLUDE #35)
3859007
GEAR, REVERSE IDLE (W/BUSHING)
3901141
GEAR, W/BUSHING, REVERSE IDLER

14053373
GASKET, Transfer Case, GASKET, TRANSFER CASE ADAPTER (K/V ONLY)

GEAR, Transmission Countershaft

14053671
GEAR, COUNTER
14073719
GEAR, COUNTER(M64)
3968038
GEAR, 3RD SPEED COUNTER

SYNCHRONIZER, Transmission Synchronizer

14067516
SYNCHRONIZER, 1ST & 2ND
14079370
SYNCHRONIZER, 3RD & 4TH

14094866
SYNCHRONIZER, Transmission Synchronizing, SYNCHRONIZER, 1ST & REVERSE,2ND & 3RD

14095695
SEAL, Transmission Internal Shift Shaft, SEAL, SHIFT SHAFT O-RING

RING, Transmission Rear Bearing and Mainshaft

14095697
RING, REAR BEARING LOCATING
2600236
RING, MAIN SHAFT REAR BEARING RETAINING
3866655
RING, MAIN DRIVE GEAR BEARING RETAINING (3.7 INCH DIAMETER)(ALSO PART OF ITEM #43)(*KIT2)

143195
PLUG, Gearshift Detent, PLUG, EXPANSION (1" TYPE A)(AS REQUIRED)

15592255
SHAFT, Gear Shifter, SHAFT, TRANS 1ST & 2ND SHIFT FORK

15592256
SHAFT, Transmission Internal Shift Shaft, SHAFT, TRANS 3RD & 4TH SHIFT FORK

ADAPTER, Transfer Case

15597792
ADAPTER, TRANSFER CASE (K3/V3)
15597793
ADAPTER, TRANSFER CASE (K1,2/V1,2)

19108029
SENSOR, Emission Control Sensor(Oxygen), SENSOR, TRANS SPEED(M20)

2059927
BOLT, Transmission Case, BOLT, ADAPTER TO TRANS (8 REQUIRED)

2059927
BOLT, Transmission Case Extension, BOLT, TRANS COVER (8 REQUIRED)

2448135
KEY, Transmission Countershaft, KEY, COUNTER GEAR

2448135
KEY, Transmission Reverse Idler Shaft, KEY, REVERSE IDLER SHAFT (4.429)

335366
WASHER, Transmission Rear Bearing and Mainshaft, WASHER, MAIN SHAFT BEARING LOCK(*KIT2)

3709354
RING, Transmission Main Drive Gear Bearing, RING, MAIN DRIVE GEAR & MAIN SHAFT BEARING RETAINER (2.44MM)

3727182
RETAINER, Transmission Shift Shaft Detent, RETAINER, TRANS REVERSE SHIFT FORK PLUNGER

3738462
VENTILATOR, Transmission Case, VENTILATOR, EXTERNAL (5.387)(PART OF #14)

3830575
NUT, Transmission/Propshaft, NUT, U JOINT, FRONT FLANGE LOCK(M20)

3831718
SPRING, Transmission Shift Shaft Detent, SPRING, DETENT CAM

WASHER, Transmission Countershaft Gear Bearing

3859006
WASHER, COUNTER GEAR SHAFT RETAINER (2 REQUIRED)
3890565
WASHER, COUNTER GEAR THRUST (2 REQUIRED)
3901153
WASHER, COUNTER GEAR THRUST(*KIT2)

3864968
PLUNGER, Transmission Shift Shaft Detent, PLUNGER, TRANS REVERSE SHIFT FORK

3866347
CAP, Transmission Countershaft Gear, CAP, COUNTER GEAR FRONT BEARING

WASHER, Transmission First/Reverse Gear

3869940
WASHER, REVERSE GEAR THRUST (FLAT)
3884595
WASHER, REVERSE GEAR THRUST (WAVED)
465450
WASHER, 1ST SPEED GEAR THRUST(*KIT2)

3901139
PIN, Transmission Internal Shift, PIN, SHIFT INTERLOCK

3915056
FLANGE, Universal Joint and Power Divider, FLANGE, U JOINT, FRONT (TYPE M)(35 SPLINES)(MANUAL TRANSMISSION(M20))

3932267
WASHER, Transmission Third & Fourth Gear, WASHER, 3RD SPEED GEAR THRUST

3952668
COVER, Transmission Case, COVER, TRANS

3968034
PLUG, Transmission Case, PLUG, MAGNETIC PIPE

3978731
SPRING, Transmission Interlock, SPRING, TRANS REVERSE SHIFT FORK

PIN, Auxiliary Internal Shift

456587
PIN, TRANS SHIFT LEVER PIVOT
456587
PIN, TRANS SHIFT LEVER PIVOT (5/16X3/4)(AS REQUIRED)

465451
CASE, Transmission Case, CASE, W/MAGNET & PLUGS

465455
BUSHING, Transmission First/Reverse Gear, BUSHING, 1ST SPEED GEAR

551946
SPRING, Transmission Internal Shift, SPRING, TRANS REVERSE SHIFT LEVER DETENT BALL (3 REQUIRED)

6261796
GEAR, Speedometer Drive, GEAR, SPEEDOMETER DRIVE (9 TEETH)(RED)(1985-86)

6271385
LEVER, Transmission Mounted Gearshift(External), LEVER, TRANS SELECTOR (1ST & REVERSE)

8672162
GASKET, Transmission Countershaft Gear Bearing, GASKET, COUNTER GEAR FRONT BEARING CAP(*KIT1)

8672163
GASKET, Transmission Power Take-Off, GASKET, POWER TAKE OFF COVER (2 REQUIRED)(*KIT1,KIT2)

8672187
GASKET, Transmission Case Cover, GASKET, TRANS COVER(*KIT1)

8672408
GEAR, Transmission Main Drive(Clutch), GEAR, MAIN DRIVE (17 TEETH)

GASKET KIT, Transmission Overhaul

8672945
GASKET KIT, W/SEALS (INCLUDE ITEMS #33,34,38,54,56,59)
8672945
GASKET KIT, TRANS W/SEALS (INCLUDE ITEM #5)

9438486
SCREW, SCREW, PAN HEAD SLOTTED (#10-24X3/8)(AS REQUIRED)

9439511
WASHER, SPRING LOCK (5/16)(AS REQUIRED)
$2.31 $1.46
10
Add To Cart

9439511
WASHER, SPRING LOCK (5/16)
$2.31 $1.46
10
Add To Cart

9439511
WASHER, LOCK (5/16)
$2.31 $1.46
10
Add To Cart

9442184
BOLT, HEXAGON (5/16-18X3/4)(AS REQUIRED)
$6.91 $4.38
5
Add To Cart

88959957
RING, EXTERNAL RETAINER, TYPE TE (5/16)(AS REQUIRED)
$12.60
1
Add To Cart

9439513
WASHER, SPRING LOCK (7/16)(5 REQUIRED)
$3.46 $2.20
1
Add To Cart

12338111
PIN, SPRING (3/16X1 1/8, STAINLESS STEEL)(AS REQUIRED)
$3.93 $2.63
10
Add To Cart

14090911
PLUG, AUTO SQUARE HEAD FILLER/DRAIN (3/8X18, STEEL)
$7.51 $4.77
1
Add To Cart

179822
BOLT, HEXAGON (5/16-18X1 1/2)(2 REQUIRED)
$15.41 $9.79
1
Add To Cart

444746
PLUG, SQUARE HEAD, FILL & DRAIN (.500-14, PLAIN)(AS REQUIRED)
$8.62 $5.45
1
Add To Cart

444746
PLUG, SQUARE HEAD, FILL & DRAIN (.500-14, PLAIN)
$8.62 $5.45
1
Add To Cart

444746
PLUG, SQUARE HEAD FILL & DRAIN (1/2-14)(AS REQUIRED)(*KIT2)
$8.62 $5.45
1
Add To Cart

9424069
BOLT, HEXAGON (7/16-14X1 1/4)(5 REQUIRED)
$5.42 $3.45
1
Add To Cart

9424877
BOLT, HEXAGON (5/16-18X3/4)(AS REQUIRED)
$3.43 $2.20
5
Add To Cart

7826284
BALL, 3/8" DIAMETER STEEL(AS REQUIRED)

7826284
BALL, STEEL (3/8)(AS REQUIRED)

141242
PIN, DOWEL (3/8 X 7/8)(AS REQUIRED)(PART OF #56)

141242
PIN, DOWEL (3/8X7/8)

141242
PIN, DOWEL (3/8X7/8)(AS REQUIRED)

9439512
WASHER, SPRING LOCK (3/8)(2 REQUIRED)

Genuine GM Parts, the Right Choice

GMPartsGiant.com offers the wholesale prices for genuine 1985 GMC C2500 parts. Parts like Manual Transmission Case & Related Parts 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, 6 Cyl 4.8L, 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L. Model Code: CREW CAB, REGULAR CAB.