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Sonnax Performance Pack HP-4L60E-01

Product Description For Sonnax Parts
Product Part No: -- HP-4L60E-01
Transmissions: -- 4L60E 4L65E 4L70E
Package and Weight
Package Quantity: -- 1 ea
Sonnax:High Performance Part - Performance Pack - Fits 1994-Later Units.
Base Price:
Product Description
Part Information:
Fits 1994-Later Units.
  • Consistent, firmer shifts under load without sacrificing low-speed drivability or guessing on calibration:
    • Faster pressure increase and higher overall pressure for greater clutch/band holding power:
    • Three ultra-reliable, patented, billet pinless accumulator pistons:
    • Unique 1-2 accumulator spring combination for shifts with character:
    • Improved high RPM pressure:
    • Third accumulator valve gets the 2-3 right the first time, every time:
  • Durable parts target commonly worn areas and prevent future damage to the accumulators and separator plate:
  • The only way to eliminate PWM function without over-pressurizing converters (optional):
Part Contents
  1. 1-2 Accumulator Valve Shim:
  2. TCC Pressure Limiter Valve & Spring Optional, eliminates PWM/EC3 function:
  3. Boost Valve with O-Ring .490":
  4. Elevated Pressure Regulator Spring:
  5. High RPM Pump Slide Spring
  6. Spacer:
  7. 4th Servo Return Spring:
  8. Servo Cushion Spring:
  9. Servo Piston D-Ring Kit:
  10. 3-4 Accumulator Piston Kit:
  11. 3-4 Accumulator Spring:
  12. Servo Release Check Valve:
  13. Forward Accumulator Kit:
  14. Checkballs (8):
  15. Separator Plate Plugs Not Shown:
  16. Twist Drills Not Shown:
  17. 1-2 Pinless Accumulator Piston Kit:
  18. 1-2 Accumulator Inner Spring:
  19. 1-2 Accumulator Outer Spring:
  20. 1-2 Accumulator Waved Spring:
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