GM

Powerglide Transmission

Tech Resources

Browse all Powerglide transmission parts here or use the filters below to find just what you are looking for.

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HD/HP Parts Featured Parts Zip Valve™ Drop-in Parts

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Area of Transmission

Part Type

Internal

1.58 Ratio Big Shaft Rear Sun Gear Kit

1.58 Ratio Big Shaft Rear Sun Gear Kit 15832-RSK

Gear Process Level: Extreme
Ratio: 1.58
Spline Tooth Count: 32

1.58 Ratio Extreme Gear Set

1.58 Ratio Extreme Gear Set 158S3-24K

Gear Process Level: Extreme
Flange Tooth Count: 24
Ratio: 1.58

1.58 Ratio Extreme Planetary Assembly Kit

1.58 Ratio Extreme Planetary Assembly Kit 28158G-06SP

Gear Process Level: Extreme
Shaft Length Option: Short
Shaft Material: 300M
Ratio: 1.58
Flange Tooth Count: 24

1.58 Ratio Extreme Planetary Assembly Kit

1.58 Ratio Extreme Planetary Assembly Kit 28158G-06

Gear Process Level: Extreme
Shaft Length Option: OE
Shaft Material: 300M
Ratio: 1.58
Flange Tooth Count: 24

1.58 Ratio Extreme Planetary Assembly Kit

1.58 Ratio Extreme Planetary Assembly Kit 28158G-NS

Gear Process Level: Extreme
Ratio: 1.58
Flange Tooth Count: 24

1.65 Ratio Big Shaft Rear Sun Gear Kit

1.65 Ratio Big Shaft Rear Sun Gear Kit 16532-RSK

Gear Process Level: Extreme
Ratio: 1.65
Spline Tooth Count: 32

1.65 Ratio Extreme Gear Set

1.65 Ratio Extreme Gear Set 165S3-24K

Gear Process Level: Extreme
Flange Tooth Count: 24
Assembled Height: 0.000"
Ratio: 1.65

1.65 Ratio Extreme Planetary Assembly Kit

1.65 Ratio Extreme Planetary Assembly Kit 28165G-06

Gear Process Level: Extreme
Shaft Length Option: OE
Shaft Material: 300M
Ratio: 1.65
Flange Tooth Count: 24

1.65 Ratio Extreme Planetary Assembly Kit

1.65 Ratio Extreme Planetary Assembly Kit 28165G-06SP

Gear Process Level: Extreme
Shaft Length Option: Short
Shaft Material: 300M
Ratio: 1.65
Flange Tooth Count: 24

1.65 Ratio Extreme Planetary Assembly Kit

1.65 Ratio Extreme Planetary Assembly Kit 28165G-NS

Gear Process Level: Extreme
Ratio: 1.65
Flange Tooth Count: 24

1.69 Ratio Big Shaft Rear Sun Gear Kit

1.69 Ratio Big Shaft Rear Sun Gear Kit 16932-RSK

Gear Process Level: Extreme
Ratio: 1.69
Spline Tooth Count: 32

1.69 Ratio Extreme Gear Set

1.69 Ratio Extreme Gear Set 169S3-24K

Gear Process Level: Extreme
Ratio: 1.69
Flange Tooth Count: 24

1.69 Ratio Extreme Planetary Assembly Kit

1.69 Ratio Extreme Planetary Assembly Kit 28169G-06SP

Gear Process Level: Extreme
Shaft Length Option: Short
Shaft Material: 300M
Ratio: 1.69
Flange Tooth Count: 24

1.69 Ratio Extreme Planetary Assembly Kit

1.69 Ratio Extreme Planetary Assembly Kit 28169G-06

Gear Process Level: Extreme
Shaft Length Option: OE
Shaft Material: 300M
Ratio: 1.69
Flange Tooth Count: 24

1.69 Ratio Extreme Planetary Assembly Kit

1.69 Ratio Extreme Planetary Assembly Kit 28169G-NS

Gear Process Level: Extreme
Flange Tooth Count: 24
Ratio: 1.69

1.69 Ratio Premium Gear Set

1.69 Ratio Premium Gear Set 169S-K

Gear Process Level: Premium
Ratio: 1.69
Flange Tooth Count: 12

1.69 Ratio Premium Planetary Assembly Kit

1.69 Ratio Premium Planetary Assembly Kit 28169G-01S

Gear Process Level: Premium
Shaft Length Option: Short
Shaft Material: 4340
Ratio: 1.69
Flange Tooth Count: 12

1.69 Ratio Premium Planetary Assembly Kit

1.69 Ratio Premium Planetary Assembly Kit 28169G-01

Gear Process Level: Premium
Shaft Length Option: OE
Shaft Material: 4340
Ratio: 1.69
Flange Tooth Count: 12

1.80 Ratio Big Shaft Rear Sun Gear Kit

1.80 Ratio Big Shaft Rear Sun Gear Kit 18032-RSK

Gear Process Level: Extreme
Ratio: 1.80
Spline Tooth Count: 32

1.80 Ratio Extreme Gear Set

1.80 Ratio Extreme Gear Set 180S3-24K

Gear Process Level: Extreme
Ratio: 1.80
Flange Tooth Count: 24

1.80 Ratio Extreme Planetary Assembly Kit

1.80 Ratio Extreme Planetary Assembly Kit 28180G-06SP

Gear Process Level: Extreme
Shaft Length Option: Short
Shaft Material: 300M
Ratio: 1.80
Flange Tooth Count: 24

1.80 Ratio Extreme Planetary Assembly Kit

1.80 Ratio Extreme Planetary Assembly Kit 28180G-NS

Gear Process Level: Extreme
Flange Tooth Count: 24
Ratio: 1.80

1.80 Ratio Extreme Planetary Assembly Kit

1.80 Ratio Extreme Planetary Assembly Kit 28180G-06

Gear Process Level: Extreme
Shaft Length Option: OE
Shaft Material: 300M
Ratio: 1.80
Flange Tooth Count: 24

1.80 Ratio Premium Gear Set

1.80 Ratio Premium Gear Set 180S-K

Gear Process Level: Premium
Ratio: 1.80
Flange Tooth Count: 12

1.80 Ratio Premium Planetary Assembly Kit

1.80 Ratio Premium Planetary Assembly Kit 28180G-01S

Gear Process Level: Premium
Shaft Length Option: Short
Shaft Material: 4340
Ratio: 1.80
Flange Tooth Count: 12

1.80 Ratio Premium Planetary Assembly Kit

1.80 Ratio Premium Planetary Assembly Kit 28180G-01

Gear Process Level: Premium
Shaft Length Option: OE
Shaft Material: 4340
Ratio: 1.80
Flange Tooth Count: 12

Featured

10-Clutch Drum 28756-01

Learn More

10-Clutch Drum Kit

10-Clutch Drum Kit 28756-01K

10-Clutch Drum Kit with Bearing

10-Clutch Drum Kit with Bearing 28756-08K

10-Clutch Drum with Bearing

10-Clutch Drum with Bearing 28756-08

10-Clutch Drum, Hub & Piston Kit

10-Clutch Drum, Hub & Piston Kit 28756-15K

10-Clutch Drum, Hub & Piston Kit with Bearing

10-Clutch Drum, Hub & Piston Kit with Bearing 28756-16K

10-Clutch Hub 28304-01

With lightening holes

10-Clutch Hub 28304-02

Without lightening holes

10-Clutch Piston

10-Clutch Piston 28765-05

Bearing Button 28510-2K

Featured

Big Input Shaft Kit

Big Input Shaft Kit 353532-01K

Learn More

Carrier-to-Case Thrust Bearing

Carrier-to-Case Thrust Bearing 28438-01K

Material: Hardened Steel
Outer Dia.: 1.980"
Thickness: 0.140"
Inner Dia.: 1.193"

Clutch Friction

Clutch Friction 104120-03

Material: High Energy
Thickness: 0.060"

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28922-27L

Shaft Length Option: Long
Ratio: 1.69 & 1.80
Material: Heat-treated 300M Steel
Spline Tooth Count: 27

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28922-32S

Shaft Length Option: Short
Ratio: 1.69 & 1.80
Material: Heat-treated 4340 Steel
Spline Tooth Count: 32

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28922-32L

Shaft Length Option: Long
Ratio: 1.69 & 1.80
Material: Heat-treated 300M Steel
Spline Tooth Count: 32

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28922-27S

Shaft Length Option: Short
Ratio: 1.69 & 1.80
Material: Heat-treated 300M Steel
Spline Tooth Count: 27

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28924-27L

Shaft Length Option: Long
Ratio: 1.58 & 1.65
Material: Heat-treated 300M Steel
Spline Tooth Count: 27

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28924-32S

Shaft Length Option: Short
Ratio: 1.58 & 1.65
Material: Heat-treated 4340 Steel
Spline Tooth Count: 32

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28924-32L

Shaft Length Option: Long
Ratio: 1.58 & 1.65
Material: Heat-treated 300M Steel
Spline Tooth Count: 32

Extreme Strength Output Shaft

Extreme Strength Output Shaft 28924-27S

Shaft Length Option: Short
Ratio: 1.58 & 1.65
Material: Heat-treated 300M Steel
Spline Tooth Count: 27

Figure-8 Thrust Washer

Figure-8 Thrust Washer 8415

For 1.76-style planetary

Figure-8 Thrust Washer

Figure-8 Thrust Washer 8415AK

For 1.82-style planetary

Front Thrust Washer

Front Thrust Washer 8415A

For 1.82-style planetary

Heavy Duty Clutch Retaining Ring

Heavy Duty Clutch Retaining Ring 28124

Intermediate clutch backing plate Heavy duty upgrade for Reverse clutch backing plate retaining ring.

Heavy Duty Figure-8 Thrust Washer

Heavy Duty Figure-8 Thrust Washer 8415-HD

For 1.76-style planetary

Heavy Duty Planetary Rebuild Kit

Heavy Duty Planetary Rebuild Kit 28922-01HDK

For 1.76-style planetary

Heavy Duty Planetary Thrust Washer Kit

Heavy Duty Planetary Thrust Washer Kit 8415BK-HD

For 1.76-style planetary

Heavy Duty Reverse Clutch Piston Kit

Heavy Duty Reverse Clutch Piston Kit 28761-01K

Material: 6061-T6 Billet Aluminum

Heavy Duty Reverse Clutch Return Spring

Heavy Duty Reverse Clutch Return Spring 28320A

Heavy Duty Reverse Clutch Spring Retainer

Heavy Duty Reverse Clutch Spring Retainer 28709

Heavy Duty Tabbed Thrust Washer

Heavy Duty Tabbed Thrust Washer 8415B-HD

For 1.76-style planetary

High Clutch Drum Bushing

High Clutch Drum Bushing 28005

Clutch Drum

Material: Aluminum Bimetal
Bushing Style: Precision
Width: 0.570"
Shaft Dia.: 1.745"
Housing Bore: 1.874"

High Clutch Drum Flange

High Clutch Drum Flange 28712-24

Tooth Count: 24
Ratio: 1.80
Ratio: 1.65

High Clutch Drum Flange

High Clutch Drum Flange 28712-12

Tooth Count: 12
Ratio: 1.80
Ratio: 1.65

High Clutch Drum Flange

High Clutch Drum Flange 28714-12

Tooth Count: 12
Ratio: 1.69
Ratio: 1.58

High Clutch Drum Flange

High Clutch Drum Flange 28714-24

Tooth Count: 24
Ratio: 1.69
Ratio: 1.58

High Clutch Drum Flange Retaining Ring

High Clutch Drum Flange Retaining Ring 28755-04

High Clutch Drum Return Spring

High Clutch Drum Return Spring 28320

High Clutch Drum Small Parts Kit

High Clutch Drum Small Parts Kit 28755-SPK

High Clutch Drum Spring Retainer

High Clutch Drum Spring Retainer 28755-02

High Clutch Drum Spring Retainer Retaining Ring

High Clutch Drum Spring Retainer Retaining Ring 28755-03

High Clutch Drum Thrust Washer

High Clutch Drum Thrust Washer 28406B

Material: Bimetal
Thickness: 0.061"
Outer Dia.: 2.690"
Inner Dia.: 2.010"

High Clutch Friction

High Clutch Friction S019740A

High Clutch

Material: Red
Thickness: 0.061"

High Clutch Hub

High Clutch Hub 28304-SP

Without lightening holes, For standard drum

High Clutch Hub

High Clutch Hub 28304

With lightening holes, For standard drum

High Clutch Hub Shim

High Clutch Hub Shim 28304-30

Material: Steel
Thickness: 0.032"
Inner Dia.: 1.884"
Outer Dia.: 2.200"

High Clutch Hub Wear Plate

High Clutch Hub Wear Plate 28755-05

Large Clutch Drum, Large

Material: Case-Hardened Steel

High Clutch Hub Wear Plate

High Clutch Hub Wear Plate 28755-06

Small Clutch Drum, Small

Material: Case-Hardened Steel

High Clutch Piston

High Clutch Piston 28765-09

High Clutch Piston Inner Lip Seal

High Clutch Piston Inner Lip Seal 28755-07

Fits standard & 10-clutch drums

Material: Fluorocarbon
Seal Style: Solid
Height: 0.143"
Outer Dia.: 3.060"
Width: 0.145"

High Clutch Piston Outer Lip Seal

High Clutch Piston Outer Lip Seal 28765-02

Fits standard & 10-clutch drums Clutch Drum Piston, Large

Material: Fluorocarbon
Seal Style: Solid
Height: 0.244"
Outer Dia.: 4.753"
Width: 0.183"

High Clutch Steel

High Clutch Steel S019701AK

Material: Kolene®
Tooth Count: 12
Thickness: 0.060"

High Clutch Steel

High Clutch Steel S019715HK-150

For use only with Sonnax 24-lug clutch drums

Material: Kolene®
Tooth Count: 24
Thickness: 0.060"

High Clutch Steel

High Clutch Steel S019701K

Material: Kolene®
Tooth Count: 12
Thickness: 0.070"

Featured

High RPM Checkball Capsule

High RPM Checkball Capsule 57510-01

Upgrades drums with four bleed holes.

Learn More

Needle Roller Bearing

Needle Roller Bearing 28413

For 1.76-style planetary

Pinion Pin Kit 28435-01K

For 1.76-style planetary

Planetary Carrier Assembly Bolt

Planetary Carrier Assembly Bolt 28922-11K

Bolt Head: Button
Bolt Spec: 3/8-16 x 1.00"

Planetary Rebuild Kit

Planetary Rebuild Kit 28922-01K

For 1.76-style planetary

Planetary Thrust Washer Kit

Planetary Thrust Washer Kit 8415BK

For 1.76-style planetary

Rear Sun Gear Bearing Kit

Rear Sun Gear Bearing Kit 38208-01K

Rear Sun Gear Thrust Washer

Rear Sun Gear Thrust Washer 38208

Material: Bronze
Outer Dia.: 1.500"
Inner Dia.: 0.505"
Thickness: 0.091"

Rear Sun Gear Thrust Washer

Rear Sun Gear Thrust Washer 38208-03

Material: PTFE-Impregnated Bimetal
Outer Dia.: 1.500"
Inner Dia.: 0.505"
Thickness: 0.091"

Replacement Reverse Clutch Steels

Replacement Reverse Clutch Steels 28131-STK

For Sonnax 1.58 & 1.65 ratio planetaries only

Reverse Clutch Apply Plate

Reverse Clutch Apply Plate 28131-2AP

For Sonnax 1.58 & 1.65 ratio planetaries only

Thickness: 0.188"
Inner Dia.: 6.120"

Reverse Clutch Friction

Reverse Clutch Friction 28131-FRK

For Sonnax 1.58 & 1.65 ratio planetaries only

Reverse Clutch Friction

Reverse Clutch Friction S032744

OE-style Reverse

Material: Red
Thickness: 0.098"

Reverse Clutch Pressure Plate

Reverse Clutch Pressure Plate 28131

Thickness: 0.290"

Reverse Clutch Pressure Plate

Reverse Clutch Pressure Plate 28131-1PP

For Sonnax 1.58 & 1.65 ratio planetaries only

Inner Dia.: 6.120"
Thickness: 0.375"

Reverse Clutch Steel

Reverse Clutch Steel S019703K

OE-style Reverse clutch

Material: Kolene®
Thickness: 0.070"

Ring Gear Anti-Wear Washer Kit

Ring Gear Anti-Wear Washer Kit 28510-AW

Featured

Ring Gear Stabilizer Kit

Ring Gear Stabilizer Kit 28510-S2

For Sonnax 1.80 and 1.69 ratio bolt-together carriers.

Learn More

Featured

Ring Gear Stabilizer Kit

Ring Gear Stabilizer Kit 28510-S3

For Sonnax 1.65 and 1.58 ratio bolt-together carriers.

Learn More

Roller Spacer Kit

Roller Spacer Kit K28414

For 1.76-style planetary

Featured

Smart-Tech® 10-Clutch Drum Kit

Smart-Tech® 10-Clutch Drum Kit 28756-25K

Learn More

Sun Gear Bushing

Sun Gear Bushing 8436

Sun Gear, fits both Aluminum and cast iron Powerglide units

Material: Bronze
Bushing Style: Precision

Sun Gear Thrust Bearing

Sun Gear Thrust Bearing 28321

Material: Hardened Steel
Bearing Style: Enclosed
Outer Dia.: 1.521"
Thickness: 0.161"
Inner Dia.: 1.028"

Tabbed Thrust Washer

Tabbed Thrust Washer 8415B

For 1.76-style planetary

Thick Roller Spacer

Thick Roller Spacer 28414

For 1.76-style planetary

Thrust Bearing 56241

Replaces clutch drum washer and requires machining.

Bearing Style: Enclosed
Material: Hardened Steel
Outer Dia.: 2.749"
Thickness: 0.106"
Inner Dia.: 2.010"

Helps cure:

Bearing noise
Bearing failure

Linkage

Park & Gear Selector Lever Guide Plate

Park & Gear Selector Lever Guide Plate 28130

Park Pawl Actuator Retaining Clip

Park Pawl Actuator Retaining Clip 28121

E-clip for 3/16" shaft

Park Pawl Shaft

Park Pawl Shaft 28115

Park Pawl Torsion Spring

Park Pawl Torsion Spring 28113

Rooster Comb Park & Gear Selector Lever Kit

Rooster Comb Park & Gear Selector Lever Kit 28862

Shift Detent Lever Retaining Clip

Shift Detent Lever Retaining Clip 28122

E-clip for 5/16" shaft

Shift Detent Lever Spring

Shift Detent Lever Spring 28861-03

Shift Detent Spring Retainer

Shift Detent Spring Retainer 28116

Shift Lever Kit

Shift Lever Kit 28431-06

One-piece One Piece

Shift Lever Kit

Shift Lever Kit 28431-05K

Bolt-together Bolt Together

Pump

Big Shaft Stator Support Tube Kit

Big Shaft Stator Support Tube Kit 28154S-125

Bushing 77005T

Can be used in Powerglide clutch drum.

Bushing Style: Precision
Material: Bimetal, PTFE-lined

Helps cure:

Worn pump bushing

Front Pump Bolt

Front Pump Bolt 28136

Thread Style: 5/16-18
Length: 1.375"

Front Pump Stud Kit

Front Pump Stud Kit 28711-03K

Oversized Pump Gear Set

Oversized Pump Gear Set 28201-OSK

Pump Bushing 34234B-01

Bushing Style: Precision
Material: Bronze

Pump Bushing 34034T-01

Pump, fits both Aluminum and cast iron Powerglide units

Bushing Style: Precision
Material: Steel-backed bimetal
Width: 0.615"
Shaft Dia.: 1.873"
Housing Bore: 2.001"

Pump Gear Set 28201

Direct OE replacement

Stator Support Bushing

Stator Support Bushing 35007A

Bushing Style: Precision
Material: Steel-backed copper alloy
Width: 0.500"
Housing Bore: 1.121"
Inner Dia.: 1.004"
Shaft Dia.: 1.002"

Helps cure:

Bushing wear
Bushing failure

Stator Support Tube

Stator Support Tube 28154S

Stator Tube Kit

Stator Tube Kit 28154S-07K

Valve Body

Boost Valve Kit

Boost Valve Kit 28999-01K

Largest OE ratio (.489" dia) valve

Case

Case Bushing 28002

Bushing Style: Precision

Modulator Plug Gasket

Modulator Plug Gasket 3543L-5

Replacement gasket for 28738-01K

Modulator Plug Kit

Modulator Plug Kit 28738-01K

Material: Anodized Aluminum

Oil Pan Stud Kit

Oil Pan Stud Kit 28711-01K

Output Shaft Support Kit

Output Shaft Support Kit 28080K

Fits 27-spline out shafts only.

Servo/Band

Band Adjustment Screw Jam Nut

Band Adjustment Screw Jam Nut 28127

Band Anchor Strut

Band Anchor Strut 28108

Extra Wide Band

Extra Wide Band S019961

Material: Red friction lining

Heavy Duty Band Adjustment Screw Kit

Heavy Duty Band Adjustment Screw Kit 28612-01K

Race-Calibrated Servo Return Spring Kit

Race-Calibrated Servo Return Spring Kit 28133-HD

Replacement Seal Kit

Replacement Seal Kit 28821-10SK

For servo kit 28821-10K

Replacement Seal Kit

Replacement Seal Kit 28821-TK

Replacement Seal Kit

Replacement Seal Kit 28821-09SK

For servo kit 28821-09K For 28821-09K

Replacement Seal Kit

Replacement Seal Kit 28821-OK

Reverse Clutch Piston Seal Kit

Reverse Clutch Piston Seal Kit 28761-01SK

Servo Cover Kit

Servo Cover Kit 28821-03K

Purple anodized

Servo Cover Kit

Servo Cover Kit 28821-06K

Non-anodized Sealing Ring Type

Servo Pin Clip 28132

Servo Piston 28821-02

Dual-seal design, Use with PTFE or metal seals

Servo Piston & Cover Kit

Servo Piston & Cover Kit 28821-05K

Dual-seal design, PTFE sealing ring style, Purple anodized

Servo Piston & Cover Kit

Servo Piston & Cover Kit 28821-08K

Dual-seal design, PTFE sealing ring style, Non-anodized

Servo Piston Kit

Servo Piston Kit 28821-02K

Dual-seal design, PTFE sealing ring style

Servo Piston Kit

Servo Piston Kit 28821-01K

Dual-seal design, O-ring style

Servo Piston Return Spring

Servo Piston Return Spring 28133

Servo Piston Seal

Servo Piston Seal 18608T

Material: PTFE
Seal Style: Scarf cut
Height: 0.143"
Outer Dia.: 2.766"
Width: 0.088"

Featured

Smart-Tech® Ratio-Style Servo Kit

Smart-Tech® Ratio-Style Servo Kit 28821-10K

Learn More

Featured

Super Hold Servo Kit

Super Hold Servo Kit 28821-09K

Learn More

Featured

Supported Servo Master Kit

Supported Servo Master Kit 28821-20K

Learn More

Supported Servo Pin & Cover Kit

Supported Servo Pin & Cover Kit 28821-19K

Tech Resources

FEATURED

July 16, 2019

Eliminate Powerglide Input Shaft Failure with the Sonnax Big Shaft System

May 09, 2017

Level Up with Sonnax: 5 Key Powerglide Transmission Areas to Upgrade for Optimum Performance

April 26, 2016

Prevent "Mystery" Powerglide Band Failures by Overcoming the Servo Pin Bias Effect

August 23, 2017

First, Do No Harm: Things You Should Know about Performance Servos

Gregg Nader

May 09, 2017

From the Bench: Building a World‑Class Powerglide Racing Transmission

January 25, 2017

Understanding & Overcoming the Powerglide Servo Pin Bias Effect - Part 2

April 27, 2016

Understanding & Overcoming the Powerglide Servo Pin Bias Effect - Part 1

February 16, 2011

Transmission Report Newsletter: February 2011

September 30, 2010

Cast Iron Powerglide® Leaks

Ed Lee

September 05, 2007

Conquering the Planets

Gregg Nader

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