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Parts for the
SM465 Transmission

SM465 Transmission

The SM465 is arguably one of the greatest four-speed transmissions ever built, and reconditioning one is a worthwhile project.

The Kit
Our master rebuild kit has been assembled for our customer's rebuilds as well as our own. It is the most complete kit we've seen anywhere and features all the consumable and wear item components.

Our kit standardizes the SM465 thrust washer and endplay and we recommend that you use the supplied shaft bushings with the supplied thrust washer for simplicity.

There are two versions of our rebuild kit, each compatible with all 2wd, 4wd and conversion 465's:

Rebuild Requirements
It is very common for our customers to do top-level rebuild work, using good methods and by following our included instruction guide.

We suggest the rebuilder have access to a set of snap ring pliers, a bearing puller and a hydraulic press.

 

SM465 Transmission Rebuild Kit

Kit 465MR-1, master rebuild, SM465 transmissions, 1968-1987 versions
Part #: 465MR-1
Weight: 10.23
Price: $229.00
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All bearings, synchronizer rings, journal bushings, snap rings, thrust washers, seals, gaskets and instruction guide

Kit 465MR-2, master rebuild, SM465 transmission, 1988-1991 with wide front bearing
Part #: 465MR-2
Weight: 10.50
Price: $247.00
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For 1988-1991 versions with .83" wide, #211 front bearing (not .68" bearing). Contains all bearings, synchronizer rings, journal bushings, snap rings, thrust washers, seals, gaskets and instruction guide

Other Components
Essentially all parts for the SM465, including gears, shafts, factory adapters & tailhousings, retainers, etc. are available new and affordably so. Our parts ordering module is provided below. For anything not shown, contact us.

 

SM465 Diagram

Click on any item description in blue below to expand its details for purchase. You can use your browser's Back button to return to this page and your cart items will remain.

For your reference, all asterixed * items below are included in our master rebuild kit, above.

Items indicated with a "" are not available singly, but are included in the Small Parts Kit, #A below.

Kit, small parts, SM465 transmission
Part #: SP304-50
Weight: 1.03
Price: $35.24
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SM465 small parts kit. Includes snap rings, slinger, input-to-mainshaft pilot roller bearings, thrust washers (kit has aftermarket style rear thrust washer - this is compatible when used with our B465 bushing kit with all years of SM465 transmission)
Kit B465, bushings, SM465 mainshaft journals, 1st, 2nd & 3rd gear
Part #: B465
Weight: 1.75
Price: $33.80
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Bushings, 1st, 2nd & 3rd gears, SM465 transmission, '68-'77 OE mainshafts & all Novak mainshafts. This kit is included with our 465MR master rebuild kit. Note that these bushings are compatible with '78-'91 transmissions when using the earlier style thrust washer included in our small parts kit
Retainer, front input bearing, SM465 transmission, 5-1/8" register. For standard duty 1-1/8" input shafts (common). Includes oil seal
Part #: 3901178
Weight: 2.00
Price: $24.85
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This is the retainer used for standard duty SM465 input shafts. It is by far the very most common version.

Retainer, front input bearing, SM465 transmission, 5-1/8" register. For heavy duty 1-1/2" input shafts (rare). Includes oil seal
Part #: 3905403
Weight: 2.80
Price: $34.67
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This is the retainer used for heavy duty SM465 input shafts. It is by far the least common version.
Gaskets set, SM465 transmission
Part #: WT304-55
Weight: 0.03
Price: $7.90
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Includes top cover, front retainer, rear tailhousing and PTO gaskets. This kit is also included in our SM465 Master Rebuild kit, 465MR
Seal, oil, front input, SM465 transmission, or rear output, with Novak 432 & 462R transfer case adapters
Part #: 1213N
Weight: 0.04
Price: $7.55
Buy:
This item is also included in our master rebuild kit, 465MR
4. Ring, retaining, front input shaft to bearing *
5. Ring, retaining, front input bearing to case *
Bearing, deep groove ball, front input, SM465 transmission 1968~1990, .68" wide. Includes the external retaining ring
Part #: 907993
Weight: 1.00
Price: $44.55
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Bearing, deep groove ball, front input, SM465 transmission, ~1988-1991, .83" wide. Includes the external retaining ring. Check the width of your bearing to verify interchange. GM offered early and late styles concurrently
Part #: WT304-61
Weight: 1.00
Price: $64.81
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Check the width of your bearing to verify interchange. GM offered early and late styles concurrently
7. Shield or slinger, front input *
Shaft, input, SM465 transmission, 1-1/8" x 10 splines x 10.69" OAL, 1968-1990 with standard .68" bearing journal. L17-S26(33)T
Part #: WT304-16A
Weight: 5.30
Price: $98.38
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This is the standard duty input shaft that is by far the very most common version.

Shaft, input, SM465 transmission, 1-1/2" x 10 splines x 9.63" OAL, 1968-1990, HD, version with standard .68" bearing. L17-S26(33)T
Part #: WT304-16
Weight: 5.00
Price: $114.40
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This is the heavy duty input shaft in various HD and industrial applications

Shaft, input, SM465 transmission, 1-1/8" x 10 splines x 10.69" OAL, some 1988-1991 with wide .83" bearing journal. L17-S26(33)T
Part #: WT304-16C
Weight: 5.00
Price: $115.86
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This is an uncommon, late version input shaft. We recommend you check your bearing width to order the correct interchange.

Shaft, input, SM465 transmission, 1-1/2" x 10 splines x 9.63" OAL, 1988-1991, HD version with wide .83" bearing. L17-S26(33)T
Part #: WT304-16B
Weight: 5.00
Price: $83.06
Buy:
This is the heavy duty input shaft in various HD and industrial applications
9. Ring, clip, input shaft to mainshaft pilot rollers *
10. Bearings, needle rollers *
Ring, synchronizer, 3rd - 4th, SM465 transmission. Supercedes WT304-14
Part #: WT304-14A
Weight: 0.30
Price: $19.00
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Slider, clutch, 3rd - 4th synchronizer, SM465 transmission. S33T. Updated torque-lock design. Also available in the WT304-11AX 3rd gear update kit
Part #: WT304-15
Weight: 0.38
Price: $20.70
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Updated torque-lock design. Also available in the WT304-11AX 3rd gear update kit
13. Ring, clip, input shaft to mainshaft pilot rollers *
Kit, synchronizer keys & springs, 3rd - 4th, SM465 transmission
Part #: WT304-K3
Weight: 0.06
Price: $8.40
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Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Hub, synchronizer, 3rd - 4th, SM465 transmission, S33-S33T
Part #: WT304-2.5
Weight: 1.20
Price: $76.49
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Kit, synchronizer keys & springs, 3rd - 4th, SM465 transmission
Part #: WT304-K3
Weight: 0.06
Price: $8.40
Buy:
Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Kit, synchronizer keys & springs, 3rd - 4th, SM465 transmission
Part #: WT304-K3
Weight: 0.06
Price: $8.40
Buy:
Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Assembly, synchronizer, 3rd - 4th, SM465 transmission. Includes hub, slider, synchro rings, keys & springs
Part #: AWT304-2.5
Weight: 1.93
Price: $84.98
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Ring, synchronizer, 3rd - 4th, SM465 transmission. Supercedes WT304-14
Part #: WT304-14A
Weight: 0.30
Price: $19.00
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Gear, 3rd, SM465 transmission. L26-S33T
Part #: WT304-11
Weight: 4.89
Price: $43.28
Buy:
Also available in our WT304-11AX update kit, which is recommended

Kit, update, 3rd gear and slider, SM465 transmission. TorqueLock / Anti-jump-out design
Part #: WT304-11AX
Weight: 5.23
Price: $101.22
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This kit is indicated for transmissions with the unlikely but possible tendency to pop out of 3rd gear. It is a good upgrade to make when rebuilding a 465
Bushing, mainshaft journal, 3rd gear, (1968-1991), SM465 transmission
Part #: WT304-19A
Weight: 0.59
Price: $10.46
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22. Washer, thrust *
Gear, 2nd, SM465 transmission. L35-S36T
Part #: WT304-21
Weight: 7.69
Price: $60.89
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Ring, synchronizer, 1st - 2nd, SM465 transmission
Part #: WT304-83A
Weight: 0.73
Price: $20.20
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Bushing, mainshaft journal, 1st gear (1968-1977) & 2nd gear journals (all years), SM465 transmission
Part #: WT304-19
Weight: 0.58
Price: $12.75
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Applicable to 2nd gear for all versions of SM465. Applicable to 1st gear for '68-'77 only when using factory 1st gear thrust washer - or - aftermarket thrust washer (as provided in Novak Master Rebuild or small parts kits).
Shaft, main, SM465 transmission, S33-46-35 spline, 2wd, 1968-1991. 15.69" OAL
Part #: WT304-2A
Weight: 9.00
Price: $126.94
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Shaft, main, SM465 transmission, S33-46-35 spline, 2wd, 1968-1991. 15.69" OAL, good used
Part #: WT304-2A-U
Weight: 10.00
Price: $63.00
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Shaft, main, SM465 transmission. S33-46-10 spline, 4wd, 1968-1978, 13.75" OAL
Part #: WT304-2C
Weight: 10.69
Price: $147.78
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This style shaft persisted until 1983 in some models

Shaft, main, SM465 transmission. S33-46-10 spline, 4wd, 1968-1978, 13.75" OAL, good used
Part #: WT304-2C-U
Weight: 13.00
Price: $73.00
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Shaft, main, SM465 transmission, S33-46-32 spline, 4wd, 1978-1991. 19.63" OAL
Part #: WT304-2D
Weight: 12.00
Price: $140.75
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Shaft, main, SM465 transmission, S33-46-32 spline, 4wd, 1978-1991. 19.63" OAL, good used
Part #: WT304-2D-U* Item in Production
Weight: 12.00
Price: $70.00
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* We're currently working on restocking this part. Please call us at 435-753-2513 for product lead time.
Kit, synchronizer keys & springs, 1st - 2nd, SM465 transmission
Part #: WT304-K1
Weight: 0.13
Price: $8.66
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Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Hub, synchronizer, 1st - 2nd, SM465 transmission
Part #: WT304-81
Weight: 4.07
Price: $83.20
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Kit, synchronizer keys & springs, 1st - 2nd, SM465 transmission
Part #: WT304-K1
Weight: 0.13
Price: $8.66
Buy:
Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Gear, reverse, sliding clutch, SM465 transmission. S44-S36T
Part #: WT304-36
Weight: 4.00
Price: $117.41
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Kit, synchronizer keys & springs, 1st - 2nd, SM465 transmission
Part #: WT304-K1
Weight: 0.13
Price: $8.66
Buy:
Keys may also be called "pawls, dogs, struts, etc.". This item is also included in our 465MR Master Rebuild kit
Assembly, synchronizer, 1st - 2nd, SM465 transmission. Includes hub, slider, synchro rings, keys & springs
Part #: AWT304-80
Weight: 9.95
Price: $155.92
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Bushing, mainshaft journal, 1st gear (1968-1977) & 2nd gear journals (all years), SM465 transmission
Part #: WT304-19
Weight: 0.58
Price: $12.75
Buy:
Applicable to 2nd gear for all versions of SM465. Applicable to 1st gear for '68-'77 only when using factory 1st gear thrust washer - or - aftermarket thrust washer (as provided in Novak Master Rebuild or small parts kits).

Bushing, mainshaft journal, 1st gear (1978-1991), SM465 transmission
Part #: WT304-19B
Weight: 0.59
Price: $11.45
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For use only when replacing identical bushing from 1978-1991 transmissions and using the factory 1st gear thrust washer instead of the aftermarket, step style thrust washer
34. Pins, 1st gear
Gear, 1st, SM465 transmission. L39-S36T
Part #: WT304-12A
Weight: 4.45
Price: $84.43
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36. Washer, thrust, improved aftermarket version*
Bearing, deep groove ball, single row, with external retaining ring groove, 6308N
Part #: 6308N
Weight: 1.42
Price: $20.41
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38. Ring, retaining, rear output bearing to case
39. Ring, retaining, mainshaft to rear output bearing*
Bearing, countershaft, front, SM465, 1968-1987
Part #: 5707
Weight: 0.39
Price: $14.96
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Bearing, countershaft, front, SM465, 1988-1991
Part #: JH14070
Weight: 0.30
Price: $15.88
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41. Ring, retaining, countershaft front bearing *
42. Washer, spacer, countershaft front
Gear, countershaft drive, SM465 transmission. R40-S21T
Part #: AWT304-9A
Weight: 7.67
Price: $72.61
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44. Washer, countershaft spacing *
45. Ring, retaining, countershaft spacing *
46. Ring, retaining, countershaft spacing *
Spacer, bushing, countershaft, SM465 transmission, replacing the earlier design using snap ring and washers
Part #: WT304-91
Weight: 0.60
Price: $6.76
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This later design replaces earlier snap rings and washer
Gear, 3rd, countershaft, SM465 transmission. R36-S44T
Part #: WT304-34
Weight: 4.00
Price: $88.94
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Shaft, counter cluster, SM465 transmission, R23-S17-R14T, later 1.4" diameter front bearing journal
Part #: WT304-3A
Weight: 14.20
Price: $123.89
Buy:
We recommend checking your journal diameter prior to ordering, easily done by removing the front lower cover
Bearing, deep groove ball, single row, with external retaining ring groove, 6308N
Part #: 6308N
Weight: 1.42
Price: $20.41
Buy:
51. Ring, retaining, countershaft rear bearing to case
52. Ring, retaining, countershaft rear bearing to shaft *
Gear, reverse idler, SM465 transmission. Includes bushing
Part #: AWT304-10
Weight: 3.18
Price: $58.75
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Shaft, idler, reverse, SM465 transmission
Part #: 3901144
Weight: 1.60
Price: $27.25
Buy:
Cover, PTO port, six bolt
Part #: T53-160B
Weight: 0.30
Price: $6.43
Buy:

Cover, PTO port, six bolt, billet aluminum
Part #: T53-160A
Weight: 0.77
Price: $28.20
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Also available in kit form with stainless fastening hardware
Gasket, PTO cover, six bolt
Part #: T9150
Weight: 0.05
Price: $1.49
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57. Screw, countershaft front bearing cover plate
Kit 465CSC, cover, front, countershaft, SM465 transmission
Part #: 465CSC
Weight: 0.15
Price: $39.00
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Gaskets set, SM465 transmission
Part #: WT304-55
Weight: 0.03
Price: $7.90
Buy:
Includes top cover, front retainer, rear tailhousing and PTO gaskets. This kit is also included in our SM465 Master Rebuild kit, 465MR
Plug, pipe, 1/2", square head, transmission drain
Part #: PP627-100
Weight: 0.10
Price: $2.24
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Plug, pipe, 1/2", square head, transmission drain
Part #: PP627-100
Weight: 0.10
Price: $2.24
Buy:
Gaskets set, SM465 transmission
Part #: WT304-55
Weight: 0.03
Price: $7.90
Buy:
Includes top cover, front retainer, rear tailhousing and PTO gaskets. This kit is also included in our SM465 Master Rebuild kit, 465MR
Gasket, rear output housing, SM465 transmission
Part #: 10148
Weight: 0.01
Price: $5.06
Buy:
64. Bolt, PTO cover plate
Seal, oil, rear output, SM465, 2wd style
Part #: 15595878
Weight: 0.13
Price: $8.12
Buy:

Key items of interest:

Billet aluminum PTO cover for transmissions
Kit PTO-K, PTO cover, six bolt style, billet
Part #: K-PTO
Weight: 1.01
Price: $41.00
Buy:
Billet aluminum PTO cover for transmissions
Adapter, casting, SM465 transmission to NP208 & NP241 transfer cases, improved OEM reproduction, 356 alloy, hardened to T6
Part #: 15598986
Weight: 14.22
Price: $174.72
Buy:

 

Shifter stick retention and boot kit
Kit, shifter retention, SM420, SM465, NP435, T176
Part #: SLR-176K
Weight: 0.32
Price: $17.20
Buy:
Includes retention spring, domed washer, retainer and rubber boot

 

Shifter stick retention and boot kit
Kit 465CSC, cover, front, countershaft, SM465 transmission
Part #: 465CSC
Weight: 0.15
Price: $39.00
Buy:
Shifter stick
Stick, shifter cane, SM420 & SM465 transmissions, upgraded one-piece version
Part #: WT304-28
Weight: 2.58
Price: $68.25
Buy: