4T65E Transmission Sonnax Boost Valve & Sleeve Kit fits GM 84754-30K
This can be traced to wear of the OE boost sleeve assembly. The OE boost sleeve assembly consists of two steel valves and a steel plug that reside in the boost sleeve. The steel valves wear the aluminum sleeve and allow leakage of boost pressure.
Sonnax 4T65E 4T65-E Transmission Sonnax Boost Valve Kit 84754-30K
Fits GM 4T65-E Transmission Sonnax Boost Valve Kit Symptoms:Harsh ReverseLow line rise in ForwardLow line rise in ReverseSoft upshiftsCause:Bore wear near the small valve causes harsh or delayed reverse depending on the location and severity of the leak, and the temperature wear near the end plug causes soft shift quality and lowline rise.Correction:The replacement boost sleeve delivers oil 360° around the valve, reducing side load. Also the surface contact of the spools is greater, which improves durability and reduces oil loss.This Kit Includes:· Valve· SleeveVehicles with a 4T65-E transmission often exhibit such problems as soft upshifts (especially 1-2), delayed reverse and low line rise. This can be traced to wear of the OE boost sleeve assembly. The OE boost sleeve assembly consists of two steel valves and a steel plug that reside in the boost sleeve. The steel valves wear the aluminum sleeve and allow leakage of boost pressure. The OE boost assembly is not serviceable separately from OE, which forces the purchase of a new and expensive valve body. Sonnax offers an upgraded boost sleeve assembly 84754-30K to replace the worn OE parts and allow the OE valve body to be used and restore the hydraulic integrity of the circuit.Valves are made of hard-anodized aluminum for better wear resistance.Valves are designed to increase oil lubricity, center the valves and increase longevity.Line boost valve is longer than the OE valve to increase wear surface area.Sleeve is made of highly wear-resistant aluminum and has been designed with oil channels to evenly distribute boost valve oil.Kit is a drop-in replacement and requires no machining.If you need anything else for your 4T65E Transmission Rebuild, ATSG tech manual, Rebuild kit, 4th clutch hub, etc please see our store. This is an actual picture of the item for sale. This is NOT a generic picture. We will ship worldwide! If your country is not listed as a ship to location, please contact us for a United States Postal Service Priority Mail shipping price! *If you don’t see what you need here, contact us and we will list it here on eBay. We have hundreds of bearing kits and all kinds of hard parts available. You can reach us by messaging us through eBay with any questions you may have.