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10" Performance Converter Kit GM-RK-1

  • Buick TH350
  • Chevy TH350
  • Powerglide
  • Powerglide, TH350, TH400, 10" Performance Converter
  • TH400 (3L80), AT-540

Sonnax 10" performance converter kit GM-RK-1 allows builders to assemble a high performance converter with minimal effort. Fully machined cover with bushing ...Read More

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Buick TH350, Chevy TH350, Powerglide, Powerglide, TH350, TH400, 10" Performance Converter, TH400 (3L80), AT-540 10" Performance Converter Kit GM-RK-1

8" Performance Converter Kit GM-RK-2

  • Buick TH350
  • Chevy TH350
  • Powerglide
  • Powerglide TH350, TH400, 8" Performance Converter
  • TH400 (3L80), AT-540
This part has been discontinued. Click here to see the part instructions.

6T70 (Gen. 2), 6T75 (Gen. 2), 6T80 (Gen. 2)
Remanufactured Valve Body GM6T70-2

Fits '13-later only. Sold without TEHCM.

Sonnax remanufactured valve body GM6T70-2 has been designed to address common issues in GM Gen. 2 6T70, 6T75 and 6T80 transmissions such as: harsh TCC apply, TCC s...Read More

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6T70 (Gen. 2), 6T75 (Gen. 2), 6T80 (Gen. 2) Remanufactured Valve Body GM6T70-2

Roll GM-RO-435

  • 298mm LU (TH250C, TH350C, 200-4R, 4L60 & E)
  • ATX LU
  • TH125 NLU
  • TH400 (3L80), AT-540

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298mm LU (TH250C, TH350C, 200-4R, 4L60 & E), ATX LU, TH125 NLU, TH400 (3L80), AT-540 Roll GM-RO-435

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

  • Buick TH350
  • Chevy TH350
  • Powerglide
  • Powerglide, TH350, TH400, 10" Performance Converter (Mounting Ring)
  • TH400 (3L80), AT-540

Sonnax 10" performance converter mounting ring kit GM-RK-14 provides torque converter builders the components for producing low-cost, high performance converters f...Read More

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Buick TH350, Chevy TH350, Powerglide, Powerglide, TH350, TH400, 10" Performance Converter (Mounting Ring), TH400 (3L80), AT-540 10" Performance Converter Mounting Ring Kit GM-RK-14

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

  • Buick TH350
  • Chevy TH350
  • Powerglide
  • Powerglide, TH350, TH400, 10" Performance Converter (Mounting Ring)
  • TH400 (3L80), AT-540

Sonnax 10" performance converter mounting ring kit GM-RK-1417 provides torque converter builders the components for producing low-cost, high performance converters...Read More

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Buick TH350, Chevy TH350, Powerglide, Powerglide, TH350, TH400, 10" Performance Converter (Mounting Ring), TH400 (3L80), AT-540 10" Performance Converter Mounting Ring Kit GM-RK-1417

Support Shim GM-WS-43

  • 68RFE
  • BorgWarner 310mm LU (A618, 47RH/RE, 48RE)
  • BorgWarner 310mm NLU
  • Buick TH350
  • TH400 (3L80), AT-540

Sonnax support shim GM-WS-43 bolsters Sonnax spring retainer in listed torque converters.

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68RFE, BorgWarner 310mm LU (A618, 47RH/RE, 48RE), BorgWarner 310mm NLU, Buick TH350, TH400 (3L80), AT-540 Support Shim GM-WS-43

Slip Yoke T2-3-2431CBHP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax performance slip yoke T2-3-2431CBHP is designed specifically for transmission output shafts that are threaded on the output end. This forged chromoly yoke f...Read More

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Slip Yoke T2-3-2431CBHP

Slip Yoke T2-3-10831HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T2-3-10831HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pri...Read More

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Slip Yoke T2-3-10831HP

Slip Yoke T2-3-13131HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T2-3-13131HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pri...Read More

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Slip Yoke T2-3-13131HP

Slip Yoke T2-3-10431HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T2-3-10431HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pri...Read More

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Slip Yoke T2-3-10431HP

Slip Yoke T3-3-5551HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T3-3-5551HP forged chromoly performance slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an afford...Read More

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Slip Yoke T3-3-5551HP

Slip Yoke T3-3-2431CBHP

TH400, 4L80-E; Muncie M20, 21 & 22; BorgWarner T10

Sonnax performance forged slip yoke T3-3-2431CBHP for 1350 series u-joints is designed specifically for transmission output shafts that are threaded on the output ...Read More

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Slip Yoke T3-3-2431CBHP

Slip Yoke T3-3-2431HP

TH400, 4L80-E; Muncie M20, 21 & 22; BorgWarner T10

Sonnax T3-3-2431HP forged chromoly performance  slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affor...Read More

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Slip Yoke T3-3-2431HP

Slip Yoke T3-3-5571HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T3-3-5571HP forged chromoly performance slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an afford...Read More

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Slip Yoke T3-3-5571HP

Slip Yoke T3R-3-9161HP

TH400, 4L80-E, Muncie M20, 21 & 22, BorgWarner T10

Sonnax T3R-3-9161HP performance forged slip yoke is an excellent upgrade over factory style transmission yokes, adding strength and durability at an affordable pri...Read More

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Slip Yoke T3R-3-9161HP

Manual Valve Assembly 104740-24K

  • 6L45
  • Fits BMW units only.

Some BMW vehicles with 6L45 transmissions may exhibit no engagement when shifted into Forward or Reverse. Under these circumstances, it is common that the manual v...Read More

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6L45 Manual Valve Assembly 104740-24K

O-Ring GM-O-2V

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) O-Ring GM-O-2V

Rivet GM-RV-8

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) Rivet GM-RV-8

Thrust Washer GM-WA-8

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) Thrust Washer GM-WA-8

Friction Ring B45240HTE

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) Friction Ring B45240HTE

Friction Ring B66240HTE

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) Friction Ring B66240HTE

Friction Ring B66240HTL

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)
  • 4L80-E (Late Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator), 4L80-E (Late Single Stator) Friction Ring B66240HTL

Pinion Thrust Washers 34821-07

This part has been discontinued.

Wave Spring GM-WS-11

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

Shim GM-WS-18

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

Shim GM-WS-19

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator) Shim GM-WS-19

Shim GM-WS-20

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator) Shim GM-WS-20

Impeller Hub GM-90-32FG

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator) Impeller Hub GM-90-32FG

Impeller Hub GM-90-40G

  • 4L80-E (Dual Stator)
  • 4L80-E (Early Single Stator)

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4L80-E (Dual Stator), 4L80-E (Early Single Stator) Impeller Hub GM-90-40G
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