Sonnax 76948-12K Transmission Elevated Pressure Regulator Spring & Valve Kit

Sonnax 36940-03K 5R110W Oversized Pressure Regulator Valve Kit Transmission

TCI Transmission Pressure Valve Spring 224300; High Pressure Spring for GM TH400

Genuine GM Automatic Transmission Pressure Regulator Valve Inner Spring 08680684

TCI for Pressure Regulator Spring for Powerglide.

6L45 6L50 6L80 6L90 Auto Transmission Oil Pump Plunger Pressure Regulator Valve

Sonnax 44912-11K TCC Regulator Valve Kit 45RFE 68RFE

4R70E 4R70W 4R75E 4R75W Transmission Sonnax Solenoid Regulator Valve Kit