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Gm rk 688wc

6L80, 6L90 (JMBX) Performance Converter

258mm Damperless Multi-Plate Racekit GM-RK-688WC

Street/Strip applications only. For use with GM 258mm early stators only.

  • Unit Size: 300mm
  • Core: GM 258mm
  • Dampered: No
  • Lockup: Yes
  • Turbine Hub Input Spline Count: 36
Gm rk 688

6L80, 6L90 (JMBX) Performance Converter

258mm Damperless Multi-Plate Racekit GM-RK-688

Street/Strip applications only. For use with GM 258mm early stators only.

  • Unit Size: 300mm
  • Core: GM 258mm
  • Dampered: No
  • Lockup: Yes
  • Turbine Hub Input Spline Count: 36
Gm pi 22

4L80-E, 4L85-E, Multi-Plate Performance Converter

Pilot GM-PI-22

  • Material: Steel
  • Pilot Type: Weld-in
  • Outer Dia.: 1.703"
  • Length: 0.430"
Gm pi 23

6L80, 6L90 (JMBX) Performance Converter

Pilot GM-PI-23

Used on 4L80-E, 4L85-E, Multi-Plate Performance Converter when adapted to Gen. III (LS) engines.

  • Material: Steel
  • Pilot Type: Weld-in
  • Outer Dia.: 1.703"
  • Length: 0.890"
124740 40k

6T70 (Gen. 1), 6T75 (Gen. 1)

Oversized Actuator Feed Accumulator Piston Kit 124740-40K

    Helps cure:
  • Harsh shifts
  • Soft shifts
  • Solenoid performance codes
47740 44k

U760E, U760F

Oversized B1 Apply Control Valve Kit 47740-44K

    Helps cure:
  • 1-2 Long slide
  • B1 brake clutches burned
  • Clutch failure
  • Low line pressure
F 47740 tl44

U760E, U760F

Tool Kit F-47740-TL44

74140 01k

4L60, 4L60-E, 4L65-E, 4L70-E

Heavy Duty 3-4 Clutch Backing Plate Kit 74140-01K

Requires ‘91-later 3-4 apply ring stamped with number “7”, measuring 3.671–3.682" in height.

33715j 01

VT25-E

Differential Pinion Gear Shaft 33715J-01

  • Length: 3.680"
  • Dia.: 0.669"
As cp 5f

AS69RC

Friction Plate AS-CP-5F

Three required

  • Material: Steel
  • Tab Style: Internal
  • Outer Dia.: 8.563"
  • Inner Dia.: 6.810"
  • Thickness: 0.099"
  • Tab Count: 42
Gm rk 685wc

6L80, 6L90 (JMBX) Performance Converter

265mm Damperless Multi-Plate Racekit GM-RK-685WC

Street/Strip applications only.

  • Unit Size: 300mm
  • Core: GM 265mm
  • Dampered: No
  • Lockup: Yes
  • Turbine Hub Input Spline Count: 36
Gm rk 685

6L80, 6L90 (JMBX) Performance Converter

265mm Damperless Multi-Plate Racekit GM-RK-685

Street/Strip applications only.

  • Unit Size: 300mm
  • Core: GM 265mm
  • Dampered: No
  • Lockup: Yes
  • Turbine Hub Input Spline Count: 36
104740 24k

6L45, 6L50

Manual Valve Assembly 104740-24K

    Helps cure:
  • No Forward
  • No Reverse
  • Gear ratio codes
B45606hte

6R60, 6R75W

Friction Ring B45606HTE

  • Material: HTE
  • Outer Dia.: 8.080"
  • Inner Dia.: 6.930"
  • Thickness: 0.045"