Sonnax

4L60E 4L65E 4L70E Isolator Sleeve Kit by Sonnax(1993-UP)(Requires Tools F-77754-TL4, VB-FIX)

4L60E 4L65E 4L70E Isolator Sleeve Kit Sonnax Part Number: 77754-ISO Tooling Required! Tool #'s F-77754-TL4, VB-FIX Severe wear of the TCC regulator valve bore from the OE valve allows regulated...

4L60E 4L65E 4L70E Line Pressure Booster Kit by Sonnax (1.810'' Sleeve) (2005-UP)

4L60E/4L65E/4L70E Line Pressure Booster Kit by Sonnax Late Style w/ Short Sleeve - 1.810'' Line pressure booster kit 4L60E-LB2 fits late-style GM 4L60-E, 4L65-E and 4L70-E pumps. Sonnax hydraulic...

4L60E 4L65E 4L70E Line Pressure Booster Kit by Sonnax (1.907'' Sleeve) (1993-2004)

4L60E/4L65E/4L70E Line Pressure Booster Kit by Sonnax Early Style w/ Long Boost Sleeve - 1.907'' Line pressure booster kit 4L60E-LB1 fits early-style GM 4L60-E, 4L65-E and 4L70-E pumps. Sonnax...

4L60E 4L65E 4L70E Oversized 3-4 Shift Valve Kit by Sonnax (Requires Tooling)

4L60E 4L65E 4L70E Oversized 3-4 Shift Valve Kit by Sonnax (Requires Tooling) Part No. 77754-42K Tooling:  F-77754-TL42  VB-FIX In GM 4L60-E, 4L65-E abd 4L70-E units, wear at the...

4L60E 4L65E 4L70E Oversized 4-3 Sequence Valve Kit by Sonnax (Full Ream Required)

4L60E 4L65E 4L70E Oversized 4-3 Sequence Valve Kit by Sonnax (Full Ream Required) Part No. 77964-14K Use with OE valve/bore only, addresses wear at inboard two spools & other locations...

4L60E 4L65E 4L70E Oversized 4-3 Sequence Valve Kit by Sonnax (Ream Required)

4L60E 4L65E 4L70E Oversized 4-3 Sequence Valve Kit by Sonnax Part No. 77964-04K Tooling:  77964-RM2 GM 4L60-E, 4L65-E and 4L70-E transmissions often have trouble shifting into or holding...

4L60E 4L65E 4L70E Oversized Forward & Reverse Abuse Valve Kit by Sonnax (Ream Required)

4L60E 4L65E 4L70E Oversized Forward & Reverse Abuse Valve Kit by Sonnax (Ream Required) Part No. 77754-58K Tooling:  F-77754-TL58  VB-FIX Fits in either of two locations...

4L60E 4L65E 4L70E Oversized Low Overrun Valve Kit by Sonnax

4L60E 4L65E 4L70E Oversized Low Overrun Valve Kit by Sonnax Part No. 77754-62K Tooling:  F-77754-TL62  VB-FIX The low overrun valve directs line pressure to the reverse input and...

4L60E 4L65E 4L70E Performance Pressure Regulator Spring (1993-UP) Sonnax

4L60E 4L65E 4L70E High Performance Pressure Regulator Spring Sonnax Part Number: 77917-10 1993-UP Model Years This high-quality, heavy-duty pressure regulator valve spring 77917-10 from Sonnax fits...

4L60E 4L65E 4L70E Pinless Forward Accumulator Piston Kit by Sonnax

4L60E/4L65E/4L70E Pinless Forward Accumulator Piston Kit Sonnax Part Number: 77987-01K In GM 4L60-E, 4L65-E and 4L70-E units it is common for the plastic forward accumulator piston to wear or crack...

4L60E 4L65E 4L70E Rear Stator HD Bushing by Sonnax 77002BT-01

4L60, 4L60-E, 4L65-E, 4L70-E Rear Stator Support Bushing Sonnax Part No. 77002BT-01 The original GM 4L60, 4L60-E, 4L65-E, 4L70-E rear stator bushing comes in narrow and wide...

4L60E 4L65E 4L70E Replacement Seal Kit ONLY For Sonnax Super Hold Servo

4L60, 4L60-E, 4L65-E, 4L70-E Replacement Seal Kit for Sonnax Super Hold Servo

4L60E 4L65E 4L70E Sonnax Performance Pack

Performance PackPart No. HP-4L60E-01 Fits '94-later units. The Sonnax Performance Pack for GM 4L60-E, 4L65-E and 4L70-E transmissions is a must-have for any heavy-duty vehicle and the very...

4L60E 4L65E 4L70E TCC Apply Valve Kit (NON-PWM Only)

Vehicles with GM 200-4R, 4L60 and 4L60-E transmissions have numerous converter overheat lockup complaints. These include no lockup or lockup immediately after 2nd Gear when fluid warms up, caused by...

4L60E 4L65E 4L70E TCC Apply Valve Kit (PWM Only)

Vehicles with GM 4L60-E, 4L65-E and 4L70-E transmissions have numerous converter overheat lockup complaints. These include no lockup or lockup immediately after 2nd Gear when fluid warms up, caused...

4L60E 4L65E Sonnax Boost Valve Kit | Early Factory Style | .470''

Early style, .470" dia., OE ratio, factory style GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty...

4L60E 4L65E Sonnax Boost Valve Kit | Early O-Ring Style | .470''

Early style, .470" dia., OE ratio, O-ring style GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty...

4L60E 4L65E Sonnax Boost Valve Kit | Early O-Ring Style | .490''

GM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EPC solenoid causes the boost sleeve...

4L60E 4L65E Sonnax Boost Valve Kit | Late O-Ring Style | .421''

Late style, .421" dia. OE ratio, O-ring style GM 4L60-E, 4L65-E and 4L70-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The...

4L60E 4L65E Sonnax Boost Valve Kit | Late O-Ring Style | .472''

Late style, .472" dia., OE ratio, O-ring style GM 4L60-E, 4L65-E and 4L70-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The...