This Sonnax Performance Pack offers innovative, heavy-duty calibration for firmer shifts under load without sacrificing low-speed drivability. Precision components upgrade the 4R100 for maximum performance and durability by recalibrating pressures and shift accumulation. Durable, improved parts target commonly worn areas in the transmission to repair damage and prevent future wear and tear.
Recalibrated shift accumulation, with tunability for great HD shifts
Improved accumulator valves for greater clutch durability
Improved pump components to minimize leaks and maintain pressure, TCC performance and lube
Sure Lock overdrive retaining ring prevents loss of 4th
Includes internal parts for setup and to prevent common failures
Contents:
1-2, 2-3 & 3-4 Accumulator Control Valve Kits
Heavy Duty Low/Reverse Modulator Sleeve Kit
Line Pressure Booster Kit
Line-to-Lube Pressure Regulator Valve
TCC Control Plunger Valve Kit
Front Lube/Drainback Valve Kit
Line Pressure Modulator Plunger Valve Kit
One-Piece Rear Case Bushing
Center Support Gasket
Intermediate & Direct Clutch Feed Seal Kit
High Radius Relief Valve
Rear Planet Endplay Shims (2)
Performance Rated Accumulator Springs Green Springs (2), Yellow Springs (2), Red Springs (3), Non-Painted Springs (3)
This Sonnax Performance Pack offers innovative, heavy-duty calibration for firmer shifts under load without sacrificing low-speed drivability. Precision components upgrade the 4R100 for maximum performance and durability by recalibrating pressures and shift accumulation. Durable, improved parts target commonly worn areas in the transmission to repair damage and prevent future wear and tear.
Contents:
SONNAX Installation Instructions
Eliminate Leakage & Optimize Performance with Sonnax O-Ringed Valves