Transmission Parts

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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
5R110W Bearing Kit SBK-F8

5R110W

Bearing Kit SBK-F8

All bearings fit units '03-later with exception of Forward carrier/Forward ring gear bearing that fits '05-later only.

    Helps cure:
  • Bearing noise
  • Bearing failure
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
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