GM

400 (3L80), AT-540 Torque Converter

400 (3L80), AT-540 Tech Resources View all Torque Converters

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Gm 400 at540
0
Zip Kits

10" Performance Converter Kit GM-RK-1

Includes Impeller Hub, 30-Tooth Turbine Hub, Thrust Washer, Bushing & Front Cover; Pilot kit NOT INCLUDED

  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 30
Zip Kits

10" Performance Converter Kit GM-RK-1S

Includes Impeller Hub, 30-Tooth Turbine Hub, Thrust Washer, Bushing & Front Cover; Pilot kit NOT INCLUDED

  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 30
Zip Kits

10" Performance Converter Kit GM-RK-7

Includes Impeller Hub, 17-Tooth Turbine Hub, Thrust Washer, Bushing & Front Cover; Pilot kit NOT INCLUDED

  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 17
Zip Kits

10" Performance Converter Mounting Ring Kit GM-RK-14

Includes Impeller Hub, 30-Tooth Turbine Hub, Thrust Washer, Bushing, Pilot, Mounting Ring & Flat Head Bolts

  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 30
Zip Kits

10" Performance Converter Mounting Ring Kit GM-RK-1417

Includes Impeller Hub, 17-Tooth Turbine Hub, Thrust Washer, Bushing, Pilot, Mounting Ring & Flat Head Bolts

  • Unit Size: 10"
  • Core: GM 245mm
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 17
Zip Kits

8" Performance Converter Kit GM-RK-2

Includes Impeller Hub, Reinforcement Ring, Turbine Hub, Thrust Washer, Bushing & Front Cover with sing bolt-hole pattern; Pilot kit NOT included

  • Core: Opel
  • Unit Size: 8"
  • Dampered: No
  • Lockup: No
  • Transmission Unit: 350, 400, Powerglide
  • Turbine Hub Input Spline Count: 30
1
Zip Kits

Hub Cover MI-HC-Y

  • Material: Plastic
  • Color: Yellow
  • For Hub Dia.: 1-7/8"
2
Zip Kits

Impeller Hub GM-90-4G

  • Pump Drive Style: Slots
  • Hub Mount: Butt Mount
  • Material: Hardened Steel
  • Assembled Height: 2.150"
  • Journal Dia.: 1.875"
Zip Kits

Impeller Hub GM-90-5G

  • Pump Drive Style: Slots
  • Hub Mount: Butt Mount
  • Material: Hardened Steel
  • Assembled Height: 2.200"
  • Journal Dia.: 1.875"
Zip Kits

Impeller Hub GM-90-10G

AT-540 conversion

  • Hub Mount: Flanged
  • Pump Drive Style: Slots
  • Material: Hardened Steel
  • Assembled Height: 2.062"
  • Journal Dia.: 1.875"
  • Flange Outer Dia.: 4.120"
  • Height: 2.281"
Zip Kits

Impeller Hub GM-90-6G

  • Pump Drive Style: Slots
  • Hub Mount: Butt Mount
  • Material: Hardened Steel
  • Assembled Height: 2.080"
  • Journal Dia.: 1.875"
Zip Kits

Impeller Hub GM-90-51G

  • Hub Mount: Butt Mount
  • Material: Hardened Steel
  • Assembled Height: 2.300"
  • Journal Dia.: 1.875"
  • Pilot Dia.: 1.750"
Zip Kits

Impeller Hub GM-90-42G

GM 400, requires stator modification, use with GM-N-13H

  • Hub Mount: Flanged
  • Pump Drive Style: Slots
  • Material: Hardened Steel
  • Assembled Height: 2.062"
  • Journal Dia.: 1.875"
  • Flange Outer Dia.: 4.120"
  • Height: 2.590"
2A
Zip Kits

Impeller Hub GM-90-10GSP

AT-540 conversion

  • Hub Mount: Flanged
  • Pump Drive Style: Slots
  • Material: Hardened Steel
  • Assembled Height: 2.062"
  • Journal Dia.: 1.875"
  • Flange Outer Dia.: 3.900"
  • Height: 2.281"
Zip Kits

Impeller Hub GM-90-11G

AT-540 OE replacement

  • Hub Mount: Flanged
  • Pump Drive Style: Slots
  • Material: Hardened Steel
  • Assembled Height: 2.062"
  • Journal Dia.: 1.875"
  • Flange Outer Dia.: 4.120"
  • Height: 2.281"
3
Impeller
4A
Zip Kits

Thrust Bearing GM-N-13H

AT-540

  • Bearing Style: Partially enclosed
  • Material: Hardened Steel
  • Inner Dia.: 1.765"
  • Thickness: 0.394"
  • Outer Dia.: 3.085"
4
Zip Kits

Thrust Bearing GM-N-8HLT

GM 400

  • Bearing Style: Enclosed
  • Material: Hardened Steel
  • Inner Dia.: 2.388"
  • Thickness: 0.272"
  • Outer Dia.: 3.281"
5
Zip Kits

Shim GM-WS-5

GM 400

  • Material: Steel
  • Thickness: 0.020"
  • Inner Dia.: 2.385"
  • Outer Dia.: 2.950"
Zip Kits

Shim GM-WS-4

GM 400

  • Material: Steel
  • Thickness: 0.010"
  • Inner Dia.: 2.385"
  • Outer Dia.: 2.950"
Zip Kits

Shim GM-WS-6

GM 400

  • Material: Steel
  • Thickness: 0.030"
  • Inner Dia.: 2.385"
  • Outer Dia.: 2.950"
6
Stator
Zip Kits

Stator Adapter GM-WA-3

Aluminum, use with GM-N-8HLT to convert early-style GM 400 stator to late-style

  • Material: Aluminum
  • Outer Dia.: 3.010"
  • Inner Dia.: 1.894"
  • Total Thickness: 0.438"
  • Functional Thickness: 0.250"
Zip Kits

Stator Adapter GM-WA-19

Aluminum stator adapter, allows AT-540 stator to be modified for use with GM-N-8HLT bearing & GM-90-10G impeller hub

  • Material: Aluminum
  • Outer Dia.: 3.312"
  • Inner Dia.: 2.000"
  • Total Thickness: 0.380"
  • Functional Thickness: 0.188"
7
Zip Kits

Spring Retainer GM-RS-1

Zip Kits

Support Shim GM-WS-43

  • Material: Steel
  • Outer Dia.: 3.600"
  • Inner Dia.: 2.350"
  • Thickness: 0.010"
8
Stator Cam
8.1
Zip Kits

Conversion Spacer GMBW-WS-40

Conversion for BW 310mm LU (A618), GM 400 (3L80), AT-540 & Buick 350 Use with GM-R-15 to upgrade OE stator clutch assembly

  • Material: Steel
  • Thickness: 0.039"
  • Inner Dia.: 2.350"
  • Outer Dia.: 3.600"
Zip Kits

Stator Cam GM-R-15

Conversion for Chrysler BW 310mm LU (A618), GM 400 (3L80), AT-540 & Buick 350 Use with GMBW-WS-40 to upgrade OE stator clutch assembly.

  • Length: 0.591"
  • Pocket Count: 10
  • Outer Dia.: 3.602"
9
Zip Kits

Accordion Spring GM-S-2

10 Required

  • Width: 0.560"
  • Relaxed Height: 0.240"
  • Fold Count: 5
  • Relaxed Length: 0.430"
Zip Kits

Accordion Spring GM-S-11

  • Width: 0.560"
  • Relaxed Height: 0.225"
  • Fold Count: 4
  • Relaxed Length: 0.438"
Zip Kits

Accordion Spring GM-S-4

10 Required

  • Width: 0.430"
  • Relaxed Height: 0.225"
  • Fold Count: 3
  • Relaxed Length: 0.438"
10
Zip Kits

Roll GM-RO-572

10 Required

  • Length: 0.572"
  • Dia.: 0.312"
Zip Kits

Roll GM-RO-435

10 Required

  • Length: 0.435"
  • Dia.: 0.312"
11
Zip Kits

Inner Stator Race GM-HR-1

  • Material: Hardened Steel
  • Length: 1.040"
  • Internal Spline Tooth Count: 27
  • Outer Dia.: 2.156"
12
Zip Kits

Bearing Adapter GM-WA-44

Use with GM-N-8HLT

  • Material: Aluminum
  • Total Thickness: 1.031"
  • Outer Dia.: 3.745"
  • Inner Dia.: 1.690"
  • Functional Thickness: 0.840"
Zip Kits

Bearing Adapter GM-WA-24

Use with GM-N-8HLT

  • Material: Aluminum
  • Total Thickness: 1.155"
  • Inner Dia.: 1.690"
  • Outer Dia.: 3.745"
  • Functional Thickness: 0.966"
Zip Kits

Stator Cap GM-WP12-OE

GM 400 only

  • Material: Plastic
  • Total Thickness: 1.055"
  • Outer Dia.: 3.738"
  • Inner Dia.: 1.690"
  • Functional Thickness: 1.055"
Zip Kits

Stator Cap GM-WP14-OE

AT-540

  • Material: Plastic
  • Total Thickness: 1.055"
  • Outer Dia.: 3.745"
  • Inner Dia.: 1.690"
  • Functional Thickness: 1.055"
Zip Kits

Stator Cap GM-WP8-OE

  • Material: Plastic
  • Outer Dia.: 3.740"
  • Inner Dia.: 1.700"
  • Functional Thickness: 1.185"
  • Total Thickness: 1.185"
13
Zip Kits

Rivet GM-RV-1

10 Required

  • Rivet Type: Solid
  • Rivet Head: Flat
  • Head Dia.: 0.438"
  • Shank Dia.: 0.218"
  • Length: 0.438"
14
Zip Kits

Turbine Hub GM-HT-HS

  • Material: Steel
  • Internal Spline Tooth Count: 30
15
Turbine
15.1
Zip Kits

Reinforcement Ring GM-WS-39

BW 310mm LU (A618) and Allison AT 540/545 units require modifications for proper fit. See instructions for details. Turbine stiffener plate, weld-in

  • Material: Steel
  • Thickness: 0.420"
  • Inner Dia.: 4.710"
  • Outer Dia.: 6.260"
16
Zip Kits

Thrust Washer GM-WF-188

  • Material: Fiber
  • Thickness: 0.188"
  • Inner Dia.: 1.472"
  • Outer Dia.: 2.750"
Zip Kits

Thrust Washer GM-WF-062

  • Material: Fiber
  • Thickness: 0.062"
  • Inner Dia.: 1.472"
  • Outer Dia.: 2.750"
Zip Kits

Thrust Washer GM-WF-156

  • Material: Fiber
  • Thickness: 0.156"
  • Inner Dia.: 1.472"
  • Outer Dia.: 2.750"
Zip Kits

Thrust Washer GM-WB-2

AT-540

  • Material: Bronze
  • Thickness: 0.080"
  • Inner Dia.: 1.450"
  • Outer Dia.: 3.230"
Zip Kits

Thrust Washer GM-WF-094

  • Material: Fiber
  • Thickness: 0.094"
  • Inner Dia.: 1.472"
  • Outer Dia.: 2.750"
Zip Kits

Thrust Washer GM-WF-125

  • Material: Fiber
  • Thickness: 0.125"
  • Inner Dia.: 1.472"
  • Outer Dia.: 2.750"
17
Front Cover
18
Zip Kits

Pilot GM-PI-2

  • Material: Steel
  • Pilot Type: Weld-in
  • Outer Dia.: 1.703"
19
Zip Kits

Mounting Pad GM-FN-2

20
Hex Head Cap Screw