Transmission Parts

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200-4R, 4L60, 4L60-E Accumulator Valve Train Kit 77777M-K

200-4R • 4L60 • 4L60-E

Accumulator Valve Train Kit 77777M-K

Fits "M" version valve trains in heavy weight vehicles, .341" dia. In 4L60, fits '87-later auxiliary valve body styles only.

    Helps cure:
  • 1-2 Bang at light throttle
  • Reduced 2-4 band life
4L80-E, 4L85-E O-Ringed End Plug Kit 34200-05K

4L80-E • 4L85-E

O-Ringed End Plug Kit 34200-05K

TCC & PR Valves

  • Dia.: 0.625"
    Helps cure:
  • Pressure loss
  • TCC apply concerns
  • Burnt clutches
  • Harsh shifts
  • Soft shifts
4L60-E, 4L65-E Boost Valve Kit 77898E-4K

4L60-E • 4L65-E

Boost Valve Kit 77898E-4K

Early style, .470" dia., OE ratio, O-ring style

    Helps cure:
  • 3-4 Clutch failure
  • 2-4 Band failure
  • Low line rise
  • Poor shift quality
4L60-E, 4L65-E, 4L70-E TCC Apply Valve Kit 77805E-K

4L60-E • 4L65-E • 4L70-E

TCC Apply Valve Kit 77805E-K

Fits PWM units only.

    Helps cure:
  • No lockup
  • Code 894, 1870
  • Falls out of lockup when hot
  • Fluid blown out fill tube
  • Lockup immediately after 2nd gear
TAAT Boost Valve Kit 95200-03K

TAAT

Boost Valve Kit 95200-03K

Type 2 valve bodies only.

    Helps cure:
  • Delayed Reverse
  • Soft shifts under load
  • Harsh Reverse
  • Clutch failure
  • Low line rise
200-4R, 4L60 TV Boost Valve Kit 77917-02K

200-4R • 4L60

TV Boost Valve Kit 77917-02K

.423" Bore Dia., Factory Style

    Helps cure:
  • Soft slide shifts
  • 3-4 Clutch burned
  • Reduced band life
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