Sonnax K77898 Transmission Reverse Boost Valve Kit (Large Ratio, O-Ring Style) Alto (8) 049715A Alto Kolene Treated

(8) 049715A Alto Kolene Treated Direct Steels (0

Note This kit is fully compatible with all AX4N units

Type: Accumulator Piston Repair Kit with Sleeves

4L80E 1991-up (Smooth planet)

C6 Transmission High Performance Servo

Sonnax K77898 Transmission Reverse Boost Valve Kit (Large Ratio, O-Ring Style) Alto (8) 049715A Alto Kolene TreatedBrand: Sonnax Other Part Number: S74507RDK Type: Pump Component Items Included: Reverse Boost Valve and Sleeve with O Rings Manufacturer Part Number: K77898 Material: Steel Universal Fitment: Yes Vintage Part: No Performance Part: Yes 200 4R, 4L60, 700R4 Reverse Boost Valve Kit Part No. K77898 Large Ratio, O Ring Style Vehicles with GM 200 4R and 4L60 transmissions often have problems with poor Reverse boost or upshifts in manual low. These are