Sonnax Performance Pack For GM 4L80-E 4L85-E HP-4L80E-01
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Sonnax Performance Pack For GM 4L80-E 4L85-E
onnax Performance Pack HP-4L80E-01 upgrades GM 4L80-E and 4L85-E transmissions for maximum performance and durability in work/sport vehicles. Innovative components work together to precisely recalibrate pressures and shift accumulation, delivering firmer shifts under load without sacrificing low-speed drivability. To target common wear areas in the transmission, the kit includes many improved parts to repair damage, prevent future wear and improve reliability. Recalibrated shift accumulation, with tunability for great, heavy-duty shifts Improved pump components minimize leaks, plus maintain pressure and lube under demanding use The only way to eliminate TCC PWM function without over-pressurizing the converter Includes internal parts for setup and to prevent common failures Contents Line Pressure Booster Kit Lube Regulated Pressure Regulator Valve TCC Pressure Limiter Valve, Spring & Plug AFL Filter End Plug & O-Ring Kit Direct Clutch Dual Feed Plug Direct Clutch Dual Feed aluminium Plugs (3) 2 Extra 1-2, 2-3 & 3-4 Accumulator Piston Springs (3) Checkballs (8) Twist Drill .062" Twist Drill .086" Heavy Duty Case Bushing & Bearing Kit Direct Housing Support Ring & Seal Heavy Duty Intermediate Piston Spring Retainer Plate Case Saver Retainer Heavy Duty Clutch Retaining Ring Intermediate Clutch Accumulator Valve Springs & Adjustable End Plug 2 Springs Heavy Duty Direct Piston Return Springs (8) Forward Clutch Hub Front Washer .078" Reverse Servo Spacer Kit