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Pinion Roller 34821-06

  • 4L80-E
This part has been discontinued.

Repair Plate GM-WA-40

  • 4L80-E (Late Single Stator)

On late GM 4L80-E (late single stator) converters, the inner race sometimes produces excessive wear on the stator pilot. In some cases it wears completely through ...Read More

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4L80-E (Late Single Stator) Repair Plate GM-WA-40

Pilot GM-PI-2

  • TH400 (3L80), AT-540

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TH400 (3L80), AT-540 Pilot GM-PI-2

Pilot GM-PI-2X

  • TH400 (3L80), AT-540
This part has been discontinued.

Stator Adapter GM-WA-19

  • TH400 (3L80), AT-540

Sonnax stator adapter GM-WA-19 allows AT-540 stator to be modified for use with GM-N-8HLT bearing and GM-90-10G impeller hub.

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TH400 (3L80), AT-540 Stator Adapter GM-WA-19

Stator Adapter GM-WA-22

  • TH400 (3L80), AT-540
This part has been discontinued. Click here to see the part instructions.

Bearing Adapter GM-WA-24

  • TH400 (3L80), AT-540

Sonnax bearing adpater GM-WA-24 has 5 lugs for anti-rotation.

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TH400 (3L80), AT-540 Bearing Adapter GM-WA-24

Stator Adapter GM-WA-3

  • TH400 (3L80), AT-540

Convert early-style GM TH400 stator to late-style

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TH400 (3L80), AT-540 Stator Adapter GM-WA-3

Thrust Washer GM-WB-2

  • TH400 (3L80), AT-540
This part has been discontinued.

Stator Cap GM-WP8-OE

  • TH400 (3L80), AT-540

lugs & ribs

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TH400 (3L80), AT-540 Stator Cap GM-WP8-OE

Impeller Hub GM-90-10G

  • TH400 (3L80), AT-540

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TH400 (3L80), AT-540 Impeller Hub GM-90-10G

Impeller Hub GM-90-10GSP

  • TH400 (3L80), AT-540

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TH400 (3L80), AT-540 Impeller Hub GM-90-10GSP

Impeller Hub GM-90-42G

  • TH400 (3L80), AT-540

Sonnax impeller hub GM-90-42G allows for the use of the large Allison bearing GM-N-13H in the TH400 converter. The hub is designed to pilot the partially enclosed ...Read More

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TH400 (3L80), AT-540 Impeller Hub GM-90-42G

Impeller Hub GM-90-51G

  • TH400 (3L80), AT-540
This part has been discontinued.

Mounting Pad GM-FN-2

  • TH400 (3L80), AT-540

M10-1.50 Thread

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TH400 (3L80), AT-540 Mounting Pad GM-FN-2

Pinion Roller 34875-05

  • 4L80-E
  • Overdrive planetary, .855" long rollers fit '98-earlier only.

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4L80-E Pinion Roller 34875-05

Impeller Hub GM-90-62G

  • 4L80-E (Late Single Stator)
This part has been discontinued.

Tabbed Pinion Washers 34821-08

  • 4L80-E
  • 4L85-E
This part has been discontinued.

Retaining Clip 34989-01

  • 4L80-E
  • 4L85-E
  • Rear Servo Piston. Fits '91–'95 only.
This part has been discontinued.

Snap Ring 34994-15

  • 4L80-E
  • 4L85-E
This part has been discontinued.

Bolt 77801-01

  • 4L80-E
  • 4L85-E
This part has been discontinued.

Bearing Kit SBK-G20

  • 4L80-E
  • 4L85-E

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4L80-E, 4L85-E Bearing Kit SBK-G20

Pinion Roller 34875-02

  • 4L80-E
  • TH400
  • Output & reaction planetaries, '69–'98 earlier with .750" wide pinion gears
This part has been discontinued.

Heavy Duty Input Shaft 34670-01

  • 4L80-E
  • 4L85-E

Input shaft failure is a common problem in performance and heavy duty GM 4L80-E and 4L85-E transmissions. Sonnax heavy duty input shaft 34670-01 is manufactured fr...Read More

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4L80-E, 4L85-E Heavy Duty Input Shaft 34670-01

Case Bushing 34006-SP

  • 4L80-E
  • 4L85-E
  • TH400

The OE case bushing in vehicles with a GM TH400, 4L80-E and 4L85-E transmissions tends to walk out of the housing bore. This leaves the output shaft unsupported, r...Read More

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4L80-E, 4L85-E, TH400 Case Bushing 34006-SP

Front Servo Piston Kit 34989-02K

  • 4L80-E
  • 4L85-E
This part has been discontinued. Click here to see the part instructions.

Forward Clutch Hub Washer (Rear) 34301-094

  • 4L80-E
  • 4L85-E
  • TH400

A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch, bear...Read More

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4L80-E, 4L85-E, TH400 Forward Clutch Hub Washer (Rear) 34301-094

Forward Clutch Hub Washer (Rear) 34301-078

  • 4L80-E
  • 4L85-E
  • TH400

A pump that has been resurfaced or accumulated shaft spline wear creates excessive endplay of the forward and direct drums. This reduces sealing ring, clutch, bear...Read More

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4L80-E, 4L85-E, TH400 Forward Clutch Hub Washer (Rear) 34301-078

Impeller Hub GM-90-11G

  • AT-500
  • TH400 (3L80), AT-540

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AT-500, TH400 (3L80), AT-540 Impeller Hub GM-90-11G

Thrust Bearing GM-N-13H

  • AT-500
  • TH400 (3L80), AT-540

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AT-500, TH400 (3L80), AT-540 Thrust Bearing GM-N-13H
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