Sonnax says: Excess solenoid pressure regulator valve to bore clearance may cause shift and pressure problems. All the linear solenoids are fed by this regulator valve. Shift quality depends on the amount of wear and often changes with operating temperature.
The oversized solenoid pressure regulator valve will control the minimum and maximum pressure source for the solenoid.
Also fits Ford 6R60, 6R80. This kit will only fit ZF6HP19/26/32 (Generation 1) valve bodies. This kit will only fit ZF6HP19/26/32 (Generation 1) valve bodies. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.
For further information and installation see Sonnax Product Info and Sonnax Instruction Data Sheets on our webpage www.newco-autoline.de or on Sonnax webpage www.sonnax.com - all information of third parties is beyond our responisbility