Sonnax GM 4L65-E Transmission

Remanufactured Valve Body

4L60-E, 4L65-E Heavy Duty Remanufactured Valve Body GM054-HD

Fits ’96–’08 units. Prevents input sprag and Forward clutch failure by engaging overrun clutch in D4 1st, 2nd and 3rd Gears and D3 1st and 2nd Gears. Includes fluid rerouting for additional D4 protection and new servo cushion spring to reduce downshift clunk.

4L60-E, 4L65-E Heavy Duty Remanufactured Valve Body GM053-HD

Fits ’96–’08 units. Enhanced input sprag and Forward Clutch durability by engaging overrun clutch in D3 1st and 2nd Gears. Includes heavy duty 2-3 shift valve for enhanced protection.

4L70-E, 4L60-E, 4L65-E Remanufactured Valve Body GM049

’00–’02, Annular Lockup

4L70-E, 4L60-E, 4L65-E Remanufactured Valve Body GM051

’03–’08

Internal

Smart-Tech® Clutch Kit 77734-01K

Recommended clutch pack for Smart-Tech input housing kits.

2.84 Ratio Input Carrier Kit 77284-K

3-4 Clutch Boost Spring 77763-01

Fits '88-later units.

Helps cure:

3-4 Clutch boost spring collapse
3-4 Clutch boost springs inefficient when overheated

3-4 Clutch Boost Spring & Retainer Assembly 8667424

'88-Later

Helps cure:

3-4 Clutch failure

Apply Plate & Seal Service Kit 77733-06SVC

Batwing Washer 74582-01K

Fits 5-pinion front planetary.

Helps cure:

Planetary failure
Planetary wear

Batwing Washer 77731-05

Fits 4-pinion rear planetary.

Helps cure:

Planetary failure
Planetary wear

Bearing Kit SBK-G12

Fits '82-later

Helps cure:

Bearing noise
Bearing failure

Captured Front Planetary Bearing 77747-01

Fits '99-later Captured Front Planetary

Material: Hardened Steel
Bearing Style: Enclosed
Outer Dia.: 2.155"
Thickness: 0.195"
Inner Dia.: 1.346"

Helps cure:

Bearing noise
Bearing failure

Front Planet to Reaction Shaft Thrust Bearing 74238-01

Fits '07-later units.

Bearing Style: Thrust-Enclosed
Inner Dia.: 1.660"
Outer Dia.: 2.500"
Thickness: 0.170"

Helps cure:

Bearing noise
Bearing failure

Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K

Requires ’87-later housing, snap ring and ring gear and ’91-later 3-4 apply ring stamped with number “7”, measuring 3.671–3.682" in height.

Heavy Duty Input Shaft 77733-12SB

For units with 300mm converter, reluctor-style shaft.

Heavy Duty Input Shaft 77733-11SB

For units with 300mm converter, non-reluctor style shaft.

Heavy Duty Output Shaft 74678S-HD

Fits 4WD/AWD applications only.

Heavy Duty Output Shaft 74678L-HD

Fits 2WD and Corvette applications only.

Heavy Duty Overrun Clutch Hub 74574-HD

Heavy Duty Reaction Shaft Kit 74602-01K

Universal kit, fits all years and all input carrier styles.

Input Drum Reinforcement Kit 77733-02K

Sleeve & Seal

Input Housing Forward Sleeve Kit 77733-52K

Requires Sonnax overrun sleeve and compatible overrun piston. See instructions for details.

Input Housing Overrun Sleeve Kit 77733-51KA

Pinion Gear 77731-01

Rear Planetary

Helps cure:

Planetary failure
Planetary wear

Pinion Needle Roller 77731-03

Fits 4-pinion rear planetary.

Helps cure:

Planetary failure
Planetary wear

Pinion Needle Roller 77732-03

For 5-pinion rear planetary assemblies.

Helps cure:

Planetary failure
Planetary wear

Pinion Pin 77731-02K

Fits 4-pinion rear planetary.

Helps cure:

Planetary failure
Planetary wear

Rear Planetary Pinion Pin 77732-02

4- & 5-Pinion rear planetary

Helps cure:

Planetary failure
Planetary wear

Round Washer 77731-04

4-Pinion rear planetary

Helps cure:

Planetary failure
Planetary wear

Shim 77409-15

Front bearing Endplay

Material: Steel
Inner Dia.: 1.240"
Outer Dia.: 1.815"
Thickness: 0.015"

Helps cure:

Excess endplay
Driveline noise

Shim 77406-10

Rear bearing

Material: Steel
Thickness: 0.010"
Inner Dia.: 1.725"
Outer Dia.: 2.310"

Helps cure:

Excess endplay
Driveline noise

Smart-Tech® Input Housing Kit 77733-06KA

Does not include input shaft.

Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-11KB

For units with 300mm converter, non-reluctor style shaft.

Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-12KB

For units with 300mm converter, reluctor-style shaft.

SmartShell® Heavy Duty Reaction Shell Kit 77749-02K

Heavy duty reacion shell

Wide Reaction Sun Gear Bushing 77010-01

May not work in some late-production sun gears with OE finish-in-place bushings. Sun Gear, Wide

Material: Steel-backed bronze
Bushing Style: Precision
Housing Bore: 1.706"
Shaft Dia.: 1.575"
Width: 0.600"

Helps cure:

Bushing failure
Reaction carrier shaft damage

Pump

Boost Valve Kit 77898E-16K

Late style, .472" dia., OE ratio, O-ring style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Boost Valve Kit 77898E-3K

Early style, .490" dia., increased ratio, factory style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Boost Valve Kit 77898E-14K

Late style, .421" dia. OE ratio, O-ring style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Boost Valve Kit 77898E-6K

Early style, .470" dia., OE ratio, factory style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Boost Valve Kit 77898E-K

Early style, .490" dia., increased ratio, O-ring style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Boost Valve Kit 77898E-4K

Early style, .470" dia., OE ratio, O-ring style

Helps cure:

3-4 Clutch failure
2-4 Band failure
Low line rise
Poor shift quality

Bushing 77005T

Pump

Bushing Style: Precision
Material: Bimetal, PTFE-lined

Helps cure:

Worn pump bushing

High Performance Pressure Regulator Spring 77917-10

Line Pressure Booster Kit 4L60E-LB1

Early style

Line Pressure Booster Kit 4L60E-LB2

Late style

Oversized Pressure Regulator Valve 77917-07

Helps cure:

Erratic line pressure
Low line rise
3-4 Clutch failure
Excess pump noise
Reverse chatter

Tooling:

77917-TL
77917-TLC

Pump Slide Pivot Pin 65797

Helps cure:

Low line pressure
High line pressure

Pump Slide Spring 77722-01K

Replaces 2 OE springs

Pump Spring Spacer 77917-RV

Helps cure:

Erratic line pressure

Pump Vane 1280

Helps cure:

Lost or damaged component

Rear Stator Support Bushing 77002B

Wider than OE Rear Stator Support

Bushing Style: Precision
Material: Steel-backed lead/bronze alloy
Width: 0.510"
Inner Dia.: 1.250"
Housing Bore: 1.360"
Shaft Dia.: 1.237"

Helps cure:

Bushing wear
Bushing failure

Rear Stator Support Bushing 77002BT-01

Rear Stator Support

Bushing Style: Precision
Material: Bimetal, PTFE-lined
Housing Bore: 1.360"
Shaft Dia.: 1.237"
Assembled Height: 0.510"
Width: 0.510"

Replacement Seal 77805-S-25

For TCC apply valve kits 77805-K and 77805E-K.

Material: PTFE

Helps cure:

Lost or damaged component

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 Shaft Assembly 77918S-09K

280mm or 300mm Converter, reluctor style, '04-later.

Helps cure:

3-4 Clutch failure
Code 894, 1870
Overheated converter
No 3rd
Delayed Reverse

Stator Support Shaft Assembly 77918S-1K

280mm or 300mm Converter, non-reluctor style. '99-'04.

Helps cure:

3-4 Clutch failure
Code 894, 1870
Overheated converter
No 3rd
Delayed Reverse

Stator Support Shaft Assembly 77918S-08K

298mm Converter, reluctor style

Helps cure:

3-4 Clutch failure
Code 894, 1870
Overheated converter
No 3rd
Delayed Reverse

TCC Apply Valve Kit 77805E-K

Fits PWM units only.

Helps cure:

No lockup
Code 894, 1870
Falls out of lockup when hot
Fluid blown out fill tube
Lockup immediately after 2nd gear

TCC Solenoid Snout Kit 77942-02K

Fits '97-later PWM units. Built-in anti-drainback valve.

Helps cure:

TCC apply concerns
Overheated converter
Loss of lube oil

Valve Body (View Valve Body Layout Diagram)

3-2 Control Valve Spring 77754-23

For use in '96-later on/ff style 3-2 control valve bodies. It will not work in '93–'95 PWM style 3-2 control valve bodies.

Helps cure:

Broken 3-2 control valve spring
3-2 Bind-up
Overheated 2-4 band

3-4 Relay O-Ringed End Plug Kit 77964-08K

Fits two locations

Helps cure:

Loss of D3 oil
Loss of 4th signal oil
No 4th
Drops out of 4th

AFL Valve End Plug 77754-39

Helps cure:

Lost or damaged component

AX Code Accumulator Valve Sleeve 77754-61

Replaces OE sleeves with "AX" code only.

Helps cure:

3-4 Bump
Bang shifts
Harsh shifts
Reduced 2-4 band life
Soft shifts
1-2 Bang at light throttle

Accumulator Valve Train Kit 77754-10K

Fits valve trains with sleeve stamp codes CX, DX or YZ only.

Helps cure:

1-2 Bang at light throttle
Reduced 2-4 band life

Actuator Feed Limit Valve Kit 77754-09K

Helps cure:

Wrong gear starts
Solenoid performance codes
Erratic line pressure
Clutch failure
Band failure
No 4th
Harsh shifts
2nd Gear starts

Tooling:

77754-TL

Checkball 10000-08

Material: Imidized Plastic
Dia.: 0.250"

Helps cure:

Lost or damaged component

Clip 77754-08

Height: 1.010"
Width: 0.520"

Helps cure:

Lost or damaged component

EPC Solenoid Harness Adapter 34435-01K

For use with early-style ('92–'02) EPC solenoid in late-style (’03-later) units, solenoid not included.

Helps cure:

Line pressure instability

Forward & Reverse Abuse Bore Plug 77754-21

Fits either of two locations

Helps cure:

Delayed Reverse
3-4 Clutch burned
Burnt Low/Reverse clutch
2-4 Band burned
3-2 Bind-up

Forward & Reverse Abuse Valve Kit 77754-35K

Fits either of two locations.

Helps cure:

Delayed Forward
Delayed Reverse
Forward or Low/Reverse clutch distress
Damaged valve body casting
Low line pressure upon engagement

Forward Accumulator Piston 74927-AP

Helps cure:

Cracked pistons
Burnt clutches & bands
Forward slip
Delayed engagement
Aluminum pistons wear at the pin bore

Heavy Duty 2-3 Shift Valve 77754-41

Isolator Sleeve Kit 77754-ISO

Helps cure:

Code 894, 1870
TCC cycling
TCC slip
3-4 Clutch failure

Tooling:

Oversized 3-4 Shift Valve Kit 77754-42K

Helps cure:

2nd Gear starts
Low AFL pressure
3rd Clutch failure
3-4 Concerns

Tooling:

F-77754-TL42
VB-FIX

Oversized 4-3 Sequence Valve Kit 77964-14K

Use with OE valve/bore only, addresses wear at inboard two spools & other locations.

Helps cure:

2-4 Band burned
Low 4th Gear pressure
No 4th
2nd Quality poor

Tooling:

F-77964-TL14
VB-FIX

Oversized 4-3 Sequence Valve Kit 77964-04K

Helps cure:

No 4th
2-4 Band burned
Low 4th Gear pressure

Tooling:

77964-RM2

Oversized Forward & Reverse Abuse Valve Kit 77754-58K

Fits in either of two locations.

Helps cure:

Delayed Forward
Delayed Reverse
Forward or Low/Reverse clutch distress
Damaged valve body casting
Low line pressure upon engagement

Tooling:

F-77754-TL58
VB-FIX

Oversized Low Overrun Valve Kit 77754-62K

Helps cure:

Burnt Reverse clutch
Burnt Low/Reverse clutch
No Reverse
No Manual 1st
Slips in Forward & Reverse
Low line pressure in Reverse

Tooling:

F-77754-TL62
VB-FIX

Performance Pack HP-4L60E-01

Fits '94-later units.

Pinless Forward Accumulator Piston Kit 77987-01K

Dual-seal design

Material: Aluminum

Helps cure:

Aluminum pistons wear at the pin bore
Cracked pistons
Delayed engagement
Forward slip
Burnt clutches
Burnt bands

TCC Regulator & Isolator Valve Kit 77754-04K

Fits all years & '98-later EC3 units

Helps cure:

Code 894, 1870
Overheated converter
Low TCC apply pressure
3-4 Clutch burned
1-2 Harsh
Low line pressure

Tooling:

TCC Regulator & Isolator Valve Kit 77754-03K

4L60-E '97-earlier only, non-EC3 units

Helps cure:

Code 894, 1870
Overheated converter
Low TCC apply pressure
3-4 Clutch burned
1-2 Harsh
Low line pressure

Tooling:

The Sure Cure® Kit SC-4L60E

Fully compatible with '95-later with PWM/EC3 (electronically controlled capacity clutch) control.

Helps cure:

3-4 Clutch failure
Burnt clutches & bands
Pump noise
Reduced 3-4 clutch life
Rotor fracture
Erratic line pressure
Low line rise
1-2 Harsh
2-3 Shift feel poor
Poor shift quality
Code 894, 1870
Falls out of lockup when hot
No lockup
TCC slip

Tooling:

77754-R2
77754-TL
77917-TL

Vacuum Test Plate Kit 77754-VTP

Tooling:

VACTEST-01K

Vacuum Test Plate Kit Seal 77754-VTP-S

Tooling:

VACTEST-01K
77754-VTP

Case

1-2 or 3-4 Accumulator Spring 74926

Helps cure:

Soft shifts

3-4 Accumulator Sleeve Kit 77998-01K

Helps cure:

Case damage
Scored accumulator bores
Worn accumulator bores

3rd Accumulator Checkball & Seat 74480D

Helps cure:

2-3 Soft
2-3 Flare
3-4 Clutch burned
2-4 Band burned
3-2 Bind-up
2-3 Bind-up

Enhanced Performance Accumulator Spring 77704S

Pinless Accumulator Piston Kit 77998-03K

In 200-4R applications, this kit can only be used in the 3-4 accumulator location.

Helps cure:

Poor shift quality
Burnt clutches & bands

Replacement Seal Kit 77998-03SK

For 77998-03K Pinless Accumulator Piston

Helps cure:

Lost or damaged component

Servo Release Check Valve Kit 77701-076

2nd Gear Servo Release

Helps cure:

Reduced 3-4 clutch life
2-3 Shift feel poor
3-2 Bind-up

Wiring Harness Connector Bracket 77980-01K

Helps cure:

Retention tabs break off wiring harness connector
Connector pushed into pan area

Servo/Band

2nd Gear "Corvette" Ratio Servo Kit 77701-04K

.74 Ratio

2nd Gear Servo Kit 77701-02K

.63 Ratio

2nd Gear Super Hold Servo Kit 77911-03K

.87 Ratio

4th Gear Super Hold Dual Servo Kit 77767K

Extra Wide Intermediate Band 77700-01

Red Material

Color: Red

Extra Wide Intermediate Band 77700-01K

Kevlar^® Material

Metal Clad Viton® Seal 77911-02

Press in

Material: Fluorocarbon
Housing Bore: 0.750"
Shaft Dia.: 0.500"

Helps cure:

2-3 Concerns
2-4 Band failure

Oversized Servo Pin Kit 77787-03K

Helps cure:

Pin bore wear
No 4th
Burnt band (GM)
2-3 Bind-up
3-4 Clutch failure

Tooling:

77787-RM3

Replacement Seal Kit 77701-04SK

For 77701-04K

Replacement Seal Kit 77767K-SK

Replacement Seal Kit 77911-03SK

For 77911-03K 2nd Gear Superhold Servo

Servo Pin Kit 77787-02K

Extra long pin with seals

Other

Forward Piston Installation Tool 77764-INSTL

Reamer 77754-SERV

For SERV (GM Reman) Valve Bodies

Reamer 77964-RM2

Reamer 77787-RM3

Reamer 77754-R2

Reamer 77754-RM5

Replacement Seal Kit 77987-SK

Helps cure:

Lost or damaged component

Tool Kit F-77964-TL14

Tooling:

VB-FIX

Tool Kit F-77754-TL62

Tooling:

VB-FIX

Tool Kit 77917-TL

Tool Kit 77917-TLC

Tool Kit F-77754-TL4

Tooling:

VB-FIX

Tool Kit F-77754-TL42

Tooling:

VB-FIX

Tool Kit F-77754-TL58

Tooling:

VB-FIX

Tool Kit 77754-TL

Torx® Plus Bit 77000-HBK

Helps cure:

Stripped bell housing bolts

Tech Resources

January 27, 2025