Description
Gen 1 10L60 / 10L80 / 10L90 / 10R60 / 10R80 / 10R90 / 10R140 Oversized Main Pressure Regulator Valve Kit, Sonnax 105740-20K.
Wear in the main pressure regulator bore and on the outboard spool area of the valve is common in listed GM and Ford 10-speed RWD transmissions. This wear minimizes line pressure control, resulting in delayed shift engagement, poor shift quality and burnt clutches.
Symptoms:
- Low line pressure
- Various shift concerns
- Delayed engagement
- Poor shift quality
- Burnt clutches
Reconditioning the bore and installing Sonnax oversized main pressure regulator valve kit 105740-20K eliminates the leakage of line pressure signal oil to exhaust with the incorporation of an extended front valve spool. This valve spool is 270% longer than the OE spool, allowing for better sealing contact and a more stable operating valve. The O-ringed end plug provides a positive seal and prevents critical signal fluid from leaking to exhaust. Both of these Sonnax features ensure your units will have proper line pressure control through all drive ranges.
Includes:
- O-Rings (2) 1 Extra
- Valve
- Spring Red, Large Dia.
- Spring Small Dia.
- End Plug
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