sonnax-black Facebook-color LinkedIn-color maillink printlink r_and_r_only SERVOFIX-logo-web Twitter-color VBFIX-logo-web video-logo-web warranty_only Youtube-color
Remanufactured Valve Body
Gm026

4L80-E
Remanufactured Valve Body GM026

'91-'92, with Screw in Temp Sensor

Sonnax rebuilt valve body GM026 is no longer in production. Please check with your distributor for availability. For service inquiries, please see details on Sonnax’s Limited Lifetime Warranty on remanufactured valve bodies.

Gm027

4L80-E, 4L85-E
Remanufactured Valve Body GM027

'92-'96, Temp Sensor in Wire Harness

Internal
Sbk g10

Bearing Kit SBK-G10

1976-1997

Sbk g20

Bearing Kit SBK-G20

1991 & later

34838 01k

Direct Drum Sleeve Kit 34838-01K

In 4L80-E units, part can be used in either early or late-model drums.

    Helps cure:
  • Direct clutch failure
  • Code 87, 730, 756, 1811
  • Maximum line presssure
  • No 4th
  • Delayed 3rd
  • Delayed Reverse
  • No 3rd
  • No Reverse
  • 2nd Gear starts w/MIL on
  • TCC slip codes
34322 01

Forward Clutch Hub 34322-01

Heavy Duty

34298 078

Forward Clutch Hub Washer (Front) 34298-078

Forward Hub

  • Material: Steel
  • Thickness: 0.078"
  • Outer Dia.: 1.781"
  • Inner Dia.: 1.289"
34301 078

Forward Clutch Hub Washer (Rear) 34301-078

Forward Clutch Drum

  • Material: Steel
  • Thickness: 0.078"
  • Outer Dia.: 1.780"
  • Inner Dia.: 1.405"
    Helps cure:
  • Excess front endplay
  • Forward clutch & sealing ring failure
  • Reduced bearing, thrust washer & sealing ring life
34301 094

Forward Clutch Hub Washer (Rear) 34301-094

Forward Clutch Drum

  • Material: Steel
  • Thickness: 0.094"
  • Outer Dia.: 1.780"
  • Inner Dia.: 1.405"
    Helps cure:
  • Excess front endplay
  • Forward clutch & sealing ring failure
  • Reduced bearing, thrust washer & sealing ring life
34500 z

Front/Rear Unit Endplay Shim 34500-Z

Updated 3-tang style shim fits all units, including '97-later 4L80/85-E.

  • Material: Steel
  • Tang Count: 3
  • Inner Dia.: 1.165"
  • Thickness: 0.010"
  • Outer Dia.: 1.940"
    Helps cure:
  • Excess front endplay
  • Excess rear endplay
  • Burnt Forward clutch
  • Premature seal ring failure
34716 01

Oversized Seal Rings 34716-01

  • Material: PTFE
  • Seal Style: Solid
  • Height: 0.096"
  • Width: 0.101"
  • Outer Dia.: 0.918"
    Helps cure:
  • Wear grooves in the Forward drum ID bore
  • Burnt Forward clutch
  • Delayed engagement
34875 03

Pinion Washer 34875-03

Fits output and reaction planetaries for all model years.

34880 03

Pinion Batwing Washer 34880-03

Output & reaction planetaries, 1999 & Later

    Helps cure:
  • Output & reaction planet assembly wear
  • Output and planet assembly failure
34875 01

Pinion Pin 34875-01

Fits output and reaction planetaries for all model years.

34875 05

Pinion Roller 34875-05

Overdrive planetary, .855" long

  • Length: 0.855"
  • Dia.: 0.125"
34875 02

Pinion Roller 34875-02

Output & reaction planetaries, 1998 & earlier with .750" wide pinion gears

34821 06

Pinion Roller 34821-06

  • Dia.: 0.125"
  • Length: 0.850"
34880 02

Pinion Roller 34880-02

Output & reaction planetaries, 1999 & Later

    Helps cure:
  • Output & reaction planet assembly wear
  • Output and planet assembly failure
34875 04

Pinion Thrust Washer 34875-04

For '98-earlier GM 400, 4L80-E and 4T65-E output and reaction planetaries with .750" wide pinion gears.

34875rk

Planetary Rebuild Kit 34875RK

Output & reaction planetaries, 1998 & earlier with .750" wide pinion gears

34880rk

Planetary Rebuild Kit 34880RK

Output & reaction planetaries, 1999 & Later

    Helps cure:
  • Output & reaction planet assembly wear
  • Output and planet assembly failure
34006 05

Shim 34006-05

Rear Unit Endplay, .005" Thick

  • Material: Steel
  • Inner Dia.: 2.375"
  • Thickness: 0.005"
  • Outer Dia.: 3.250"
34821 01

Thrust Bearing 34821-01

Overdrive Planetary

  • Bearing Style: Enclosed
  • Material: Hardened Steel
  • Outer Dia.: 1.802"
  • Thickness: 0.168"
  • Inner Dia.: 1.132"
Pump
34200 03k

Boost Valve Kit 34200-03K

Fits '91-later units with factory-style sleeve. Can be retrofit to '89-91 units. See instructions for details.

    Helps cure:
  • Broken parts
  • Buzzing noise
  • Uncontrollable line rise
  • High line pressure
34200 10k

Boost Valve Kit 34200-10K

With built-in relief

    Helps cure:
  • Damaged case
  • Broken servo
  • Broken clutch piston
  • High line pressure
34200 01k

Boost Valve Kit 34200-01K

O-ring style

    Helps cure:
  • Broken parts
  • Buzzing noise
  • High line pressure
  • Uncontrollable line rise
34200 14k

Lube Regulated Pressure Regulator Valve 34200-14K

    Helps cure:
  • Low cooler flow
  • Engine surge at idle
  • Low TCC release pressure
34994 14k

O-Ringed End Plug Kit 34994-14K

Fits TCC valve bore with .668" dia.

34200 05k

O-Ringed End Plug Kit 34200-05K

TCC & PR Valves

  • Dia.: 0.625"
    Helps cure:
  • Burnt clutches
  • Harsh shifts
  • Pressure loss
  • Soft shifts
  • TCC apply concerns
34994 13

O-Ringed End Plug Kit 34994-13

Fits TCC valve bore with .497" dia.

34200 36k

Oversized Line-to-Lube Pressure Regulator & Boost Valve Kit 34200-36K

Fits '99-later units.

    Helps cure:
  • Engine surge at idle
  • Low cooler flow
34201e sp

Pump Gear Set 34201E-SP

34016 w

Stator Support Bushing 34016-W

Front Stator Support

  • Bushing Style: Precision
  • Material: Steel-backed bimetal
  • Width: 0.675"
  • Shaft Dia.: 1.123"
  • Housing Bore: 1.244"
    Helps cure:
  • Overheated fluid
  • No Overdrive
  • No lockup
  • TCC slip codes
34203 01k

Stator Support Sleeve 34203-01K

    Helps cure:
  • Damaged stator support turbine shaft sleeve
Valve Body
34994 02k

1-2 & 2-3 Shift Valve Spring Kit 34994-02K

    Helps cure:
  • Repeated Solenoid B code 86
  • Repeated Solenoid B code 87
  • 3-4 Neutral
  • No 4th
  • No 3rd
  • No 4th
  • 2nd Gear starts
24230288

1-2 Shift Solenoid 24230288

1991 & Later

34200 47k

3rd & Reverse Checkball Sleeve Kit 34200-47K

Fits units '95-later. Fits units '95-later.

    Helps cure:
  • 3rd Slip
  • 4th Slip
  • Direct clutch burned
  • Gear ratio codes
  • Reverse slip
34994 17k

AFL Filter End Plug & O-Ring Kit 34994-17K

    Helps cure:
  • Broken AFL filters
  • Leaking AFL end plug
  • 2nd Gear starts
  • Code 68, 85, 86, 87
  • No upshifts
34200 16k

Actuator Feed Limit Valve Kit 34200-16K

    Helps cure:
  • Clutch failure
  • Band failure
  • Solenoid performance codes
  • Low solenoid feed pressure
  • 2-3 Neutral
  • No 4th
  • 2nd Gear starts
  • Code 68, 85, 86, 87
  • Wrong gear starts
10000 08

Checkball 10000-08

Imidized Plastic, .250" Dia.

  • Material: Imidized Plastic
  • Dia.: 0.250"
34435 01k

EPC Solenoid Harness Adapter 34435-01K

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

34994 11

End Plug 34994-11

  • Dia.: 0.500"
34994 16  1

Manual Valve 34994-16

    Helps cure:
  • Bent valves
  • Low line rise
  • Delayed engagement
  • Gear loss
34994 16k

Manual Valve Kit 34994-16K

    Helps cure:
  • Bent valves
  • Broken AFL filters
  • Leaking AFL end plug
  • Low line rise
  • 2nd Gear starts
  • Code 68, 85, 86, 87
  • Delayed engagement
  • Gear loss
  • No upshifts
34994 22k

Oversized Accumulator Control Valve Kit 34994-22K

    Helps cure:
  • High line pressure in Drive
  • Low line rise in Reverse
  • Soft shift & low accumulator pressure
34994 18k

Oversized TCC Regulator Valve Kit 34994-18K

    Helps cure:
  • Burnt converter
  • Converter shudder
  • TCC apply & release concerns
  • TCC codes
24222077

Pressure Switch Manifold 24222077

'91-Later

34200 38

Reverse Checkball Sleeve 34200-38

Fits units '95-later. Fits units '95-later.

    Helps cure:
  • Direct clutch burned
  • Gear ratio codes
  • No Reverse
  • 4th Slip
  • 3rd Slip
  • Reverse slip
34200 40k web

Smart-Tech® Overrun Clutch Valve Kit 34200-40K

Fits units '97-later.

    Helps cure:
  • No Forward
  • OD roller clutch failure
  • Overrun clutch distress
34994 15

Snap Ring 34994-15

  • Housing Bore: 0.669"
34994 01k

TCC Regulator Valve Kit 34994-01K

    Helps cure:
  • Burnt converter
  • Converter shudder
  • TCC apply & release concerns
  • TCC codes
Sc 4l80e web

The Sure Cure® Kit SC-4L80E

    Helps cure:
  • Burnt converter
  • Bushing walks out
  • Case damage
  • Clutch failure
  • Band failure
  • Solenoid performance codes
  • Broken parts due to excessive line pressure
  • Buzzing noise
  • Metal contamination
  • Output shaft & case damage
  • High line pressure
  • Uncontrollable line rise
  • 2-3 Neutral
  • 3-4 Neutral
  • No 4th
  • 2nd Gear starts
  • Wrong gear starts
  • Converter shudder
  • TCC apply & release concerns
  • TCC slip codes
Case
34006 sp

Case Bushing 34006-SP

Case Case, No Walk Out

  • Material: Bronze
  • Bushing Style: Precision
  • Width: 0.690"
  • Shaft Dia.: 2.006"
  • Housing Bore: 2.129"
    Helps cure:
  • Bushing walks out
  • Case damage
  • Metal contamination
  • Output shaft & case damage
38511 04k

Manual Shift Shaft Kit 38511-04K

'95-Later with external neutral safety swich

38511 03k

Manual Shift Shaft Kit 38511-03K

Short Version, Retrofits ’95-later detent levers to early ’91-’94 cores

38511 01k

Manual Shift Shaft Kit 38511-01K

Short Version, '91-1994 units without external NSS

34913 01

Shift Cable Mount Bracket 34913-01

    Helps cure:
  • Damaged OE shifter bracket bosses
  • Early cases without shifter bracket bosses cannot be used in 1996 - 97 vehicles
Servo/Band
34989 01

Retaining Clip 34989-01

Rear Servo Piston

34528 01k

Reverse Servo Spacer Kit 34528-01K

    Helps cure:
  • Broken Low/Reverse servo piston
  • No Reverse
Other
34805 01k

4th Accumulator Repair Kit 34805-01K

Includes Sleeve, Pinless Piston & Seals

    Helps cure:
  • Damaged accumulator bore
  • Poor shift quality
  • Loss of accumulator control
34838 tl

Installation Tool 34838-TL

Recommended for 34838-01K

34716 tl

Sizing Tool 34716-TL

For 34716-01 Seal Rings

F 34994 tl18

Tool Kit F-34994-TL18

F 34994 tl22

Tool Kit F-34994-TL22

F 34200 tl36

Tool Kit F-34200-TL36

77754 tl

Tool Kit 77754-TL

34998 01k

Wiring Harness Connector Bracket 34998-01K

    Helps cure:
  • Connector pushed into pan area
  • Retention tabs break off wiring harness connector