GM

8L90 Torque Converter

Tech Resources View all Torque Converters

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#{@unit.name} torque converter diagram
Zip Kits

Impeller Hub GM-90-83G

  • Hub Mount: Flanged
  • Pump Drive Style: Flats
  • Material: Hardened Steel
  • Assembled Height: 1.723"
  • Flange Outer Dia.: 4.170"
  • Height: 1.866"
  • Journal Dia.: 2.307"
1
Zip Kits

Hub Cover MI-HC-C

  • Material: Plastic
  • Color: Clear
  • For Hub Dia.: 2-5/16"
2
Zip Kits

Bushing GM-B-7

  • Bushing Style: Precision
  • Material: Steel-backed Aluminum Alloy
  • Width: 0.460"
  • Housing Bore: 1.900"
  • Shaft Dia.: 1.771"
3

Impeller Hub

4

Impeller

5
Zip Kits

Thrust Bearing GM-N-22

  • Bearing Style: Partially Enclosed
  • Material: Hardened Steel
  • Inner Dia.: 2.502"
  • Thickness: 0.159"
  • Outer Dia.: 3.583"
6
Zip Kits

Bearing Race GM-N-23

  • Tang Count: 3 I.D.
  • Material: Hardened Steel
  • Thickness: 0.077"
  • Inner Dia.: 2.600"
  • Outer Dia.: 3.420"
7

Stator

8

Stator Cam

9
Zip Kits

Accordion Spring GM-S-12

GM 4L60-E (280mm) “VJCX”

  • Width: 0.470"
  • Relaxed Height: 0.225"
  • Fold Count: 4
  • Relaxed Length: 0.450"
10
Zip Kits

Roll GM-RO-480

4L60-E (280mm) “VJCX” torque converter

  • Material: Hardened Steel
  • Length: 0.480"
  • Dia.: 0.312"
11
Zip Kits

Inner Stator Race GM-HR-21

  • Material: Hardened Steel
  • Tooth Count: 54
  • Outer Dia.: 2.155"
  • Length: 0.870"
12

Stator Cap

13
Zip Kits

Thrust Bearing GM-N-11

  • Bearing Style: Enclosed
  • Material: Hardened Steel
  • Inner Dia.: 2.500"
  • Thickness: 0.150"
  • Outer Dia.: 3.391"
14

Rivet (14 Required)

15

Turbine Plate

16

Turbine

18

Spring

19

Spring (10 Required)

Spring Retainer

20

Rivet (10 Required)

21

Spring Retainer

22

Spring (6 Required)

23

Spring (6 Required)

24

Rivet (14 Required)

25

Damper Hub

26
Zip Kits

Piston Seal GM-O-22

  • Material: PTFE
  • Seal Style: Solid
  • Width: 0.098"
  • Height: 0.128"
  • Outer Dia.: 2.393"
Zip Kits

Seal ZF-O-2

Late Production Only

  • Seal Style: Compound Finger Joint
  • Material: Torlon®
  • Width: 0.094"
  • Outer Dia.: 1.722"
27

Damper Plate

28

Spring Retainer

29

Rivet (10 Required)

30

Spring Retainer

31

Thrust Washer

32

Piston

33
Zip Kits

Friction Ring B45050HTS

  • Material: HTS
  • Thickness: 0.045"
  • Inner Dia.: 8.750"
  • Outer Dia.: 9.875"
Zip Kits

Friction Ring B45050HTE

  • Material: HTE
  • Thickness: 0.045"
  • Inner Dia.: 8.750"
  • Outer Dia.: 9.875"
34

Clutch Plate

35

Spring (Cantilever, 12 required)

36

Rivet (6 Required)

37

Front Cover

38

Hex Head Cap Screw