4L60E 98-02 M30 VALVE BODY HI-PERFORMANCE SONNAX UPDATE REMANFACTURED VALVEBODY

Description: Vehicles with a GM 700-R4, or 4L60-E transmission can experience 1-2 light throttle abrupt or bang shifts, especially when using the 093 Corvette or 553 2nd apply servo pistons. The traditional solution is to make the servo piston apply diameter smaller, however this limits the 2-4 band life. This shift problem can occur due to sleeve wear allowing torque signal and/or accumulator pressure leakage, or when the accumulator valve is too large for the application, resulting in too much pressure on the 2-4 band. This valve train has multiple OE size variations, including B, A, N, M, L, K, and F. The size variations are clearly stamped with the letter on the aluminum sleeve. Most vehicles, depending upon the transmission/engine combination, can use either the M, L, or K version. However, these are not available unless scavenged from other valve bodies. 4L60E Units it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the 1-2 or 3-4 accumulator bores, Sonnax offers pinless accumulator piston kit In GM 4L60-E, 4L65-E and 4L70-E units it is common for the plastic forward accumulator piston to wear or crack. This causes a loss of fluid, resulting in delayed engagement, slips, burnt clutches and/or bands. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear, while fluid loss through the piston pin bore or cracks causes forward clutch to slip. Sonnax pinless forward accumulator piston kit 77987-01K eliminates these problems. The 3-2 control valve spring in late-model 4L60-E and 4L65-E valve bodies often breaks, and can cause a 3-2 bind and/or 2-4 band to overheat. This spring is often found to be broken during valve body service, and OE replacements are not available. Sonnax offers a replacement spring 77754-23 for 96-later 4L60-E and 4L65-E units. Sonnax has developed a drop-in replacement 2-3 shift valve that applies the overrun clutch in D3, 1st, 2nd and 3rd gears where the factory valve applies the overrun clutch only in D3, 3rd gear.Applying the overrun clutch in 1st and 2nd provides added durability to the input sprag and forward clutch in heavy duty vehicles, plow trucks and high performance applications.In addition, this upgrade works well with applications using aftermarket electronic paddle shifters. With the overrun clutch on, the Sonnax valve allows full downshift engine braking in 2nd, while the shifter remains in the D3 position. The bore plug in 4L60-E units is held loosely in place with a coiled spring pin, allowing the opposing spring and oil pressure forces to stroke it within the bore.This constant oscillation causes the plug to wear and allows PR oil at the low overrun valve and 3-4 clutch oil at the 3-2 downshift valve to exhaust at the abuse valves. This excessive oil loss can result in delayed apply of the low/reverse clutch and a tie-up of the 3-4 clutch and 2-4 band. Sonnax forward and reverse abuse bore plug 77754-21 resolves these problems.This plug is used in two locations in the valve body: to separate the forward abuse and low overrun valves, and to separate the reverse abuse and 3-2 downshift valves This Will work for all 4L60E/4L65E applications 1998-2002 All Parts are checked to make sure they are within OEM Specifications, and no major wear is present. LIFETIME WARRANTY!!! Included: Valve Body RemanfacturedSonnax TCC Regulator Valve (#77754-04K) INSTALLEDNEW TransGo Seperator PlateUPPER and LOWER Valve Body Gaskets8 Check Balls (7 Installed)Accumulator Valve Train Kit (Sonnax 77777M-K) Pinless Accumulator Piston Kit (x2) (Sonnax 77998-03K) Pinless Forward Accumulator Piston Kit (Sonnax 77987-01K) 3-2 Control Valve Spring (Sonnax 77754-23)Heavy Duty 2-3 Shift Valve (Sonnax 77754-41)Forward & Reverse Abuse Bore Plug (x2) (Sonnax 77754-21) 2 Valve Body FiltersTested Solenoids includedTransmission Pan GasketTransmission FilterValve Body Installation Instructions and INFO FREE SHIPPING FEDEX ONLY!!! (Domestic only!) If you are interested in shipping USPS please send us an invoice (before purchase) and we will send you the cost. Item will ship FedEx if USPS is selected but did not send an invoice or pay the shipping cost. Please be advised there is a $15 dollar surcharge, plus cost of shipping depending on zip code. Thanks and we apologize for the inconvenience. QUESTIONS? E-Mail US! Shift Rite Transmissions (815) 377-2773 Business Hours: Monday - Friday 8:00 AM - 5:00 PM CST WARRANTY POLICY WE HONOR ALL PRODUCTS WE SELL, IF YOU ARE UNHAPPY WITH AN ITEM FOR ANY REASON EMAIL US WITH THE INFO AND WE CAN EXCHANGE FOR AN REPLACEMENT ITEM, WE ASK THAT THIS BE DONE WITHIN 14 DAYS OF THE PURCHASE DATE. REMANUFACTURED VALVEBODIES HAVE A LIFETIME (EXCHANGE) WARRANTY, HOWEVER YOU MUST KEEP YOUR RECEIPT AS EBAY ONLY KEEPS RECORDS FOR 90 DAYS!WARRANTY DOES NOT COVER ANY OF THE FOLLOWING: Any and all shipping costs, including freight damage claims. Rental cars, loss of work, any labor costs, removal/reinstall fees, towing costs, inspection fees and any other incidental costs or damages which may be associated with product failure. Any product that has been physically altered, improperly installed or maintained. Any product used in an improper application, abused or not used in connection with the proper parts. RETURN POLICY ALL ITEMS ARE SOLD AS-IS NO REFUNDS! NO REFUNDS ON ANY ITEMS THAT HAVE BEEN UNPACKAGED, HOOKED UP OR USED IN ANY WAY. NO REFUNDS ON ANY USED PARTS. 20% RESTOCKING FEE ON ALL UNUSED PRODUCT RETURNS, ANY PRODUCTS THAT HAVE BEEN USED/INSTALLED CAN ONLY BE RETURNED OR EXCHANGED. IF FOR ANY REASON A PRODUCT IS RETURNED A 20% RESTOCKING FEE WILL APPLY. PLEASE READ ABOVE INFO WARRANTY INFO. ORIGINAL SHIPPING COST WILL NOT BE REFUNDED IN ANY CASES. CUSTOMER RESPONSIBLE FOR SHIPPING COSTS ON RETURNED ITEMS.

Price: 539.99 USD

Location: Kankakee, Illinois

End Time: 2024-08-02T16:59:33.000Z

Shipping Cost: 0 USD