High Performance Parts

4L60E 4L65E 4L70E TCC Valve, Sonnax Upgrade (1998-UP)(Requires Tool 77754-R2)

This is an upgrade Sonnax TCC Valve used on GM 4L60E, 4L65E and 4L70E transmissions 1998-UP.  A special Sonnax reaming tool is required to install this part(Sonnax Reamer 77754-R2/SKU:0204A)

4L60E Replacement Seal Kit for Sonnax 77733-51KA and 77733-52K

4L60 | 4L60-E 

4L60 4L60-E 4L65-E 4L70-E Input Housing Forward Sleeve Kit - Sonnax

4L60 4L60-E 4L65-E 4L70-E Input Housing Forward Sleeve Kit Part No. 77733-52K Requir

700R4 4L60E 4L65E 4L70E Smart Tech Clutch Kit - Sonnax

700R4 4L60E 4L65E 4L70E Smart Tech Clutch Kit by Sonnax Part No. 77734-01K Recommen

700R4 4L60E 4L65E 4L70E Servo Pin Kit with Seals (Extra Long) by Sonnax

700R4 4L60E 4L65E 4L70E Servo Pin Kit with Seals (Extra Long) by Sonnax Part No. 77787-02K

700R4 4L60E Molded Rubber Piston Upgrade Kit (1982-E1997)

This kit comes with the Late style 4L60E Forward Return Spring and Molded Rubber Clutch Pistons that are normally only used from 1997-UP but with this kit you can run the upgraded molded rubber...

700R4 4L60E 4L65E 4L70E Kolene Steel Module (1987-UP) NO 3-4 STEELS

This Kolene Steel Module comes with all the steels except the 3-4 pack. This kit is meant to be used with high performance 3-4 clutch/steel combo packs like the Raybestos Z-Pack, Alto PowerPack, and...

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 best...

4L60E 4L65E 4L70E 3-4 Clutch Steel Plate (2001-UP) 0.095''

Teeth 20 Waved/Flat Flat Thickness (Inches) .095 Thickness (mm) 2.41

700R4 4L60E 4L65E 3-4 Accumulator Sleeve Kit

4L60, 4L60-E, 4L65-E, 4L70-E 3-4 Accumulator Sleeve KitPart No. 77998-01K The 3-4 accumulator bore on GM 4L60 and 4L60-E series cases can become scored, resulting in the loss of 4th servo feed and...

4L60E 4L65E 4L70E Vacuum Modulator Kit

Great for transplants! Provides a more aggressive and tunable pressure boost curve with engine vacuum instead of vehicle PCM controlling PCS/EPC Solenoid. Note: This kit does not eliminate the need...

4L60E 4L65E 4L70E Gently Oversized Actuator Feed Limit Valve 10-Pack (1993-UP) No Tools Required

Actuator Feed Limit Valve, 4L60/65/70E,(10 pack) Gently Oversized, 93-UP, No tools required!

4L60E 4L65E 4L70E Gently Oversized End Plug Kit 0.5509 Bore (1993-UP) 12 Pack

Gently Oversized End Plug Kit 0.5509 Bore 12 Pack 4L60E 4L65E 4L70E 93-UP No Tools Required!

4L60E 4L65E 4L70E AFL Valve Gently Oversized Seals Existing Bore

AFL(Actuator Feed Limit) Valve, 4L60E/65E/70E, Gently Oversized, Seals Existing Bore, No Tools Required (1993-2014)

4L60E 4L65E 4L70E Oversized Actuator Feed Limit Valve (Requires Tool)

Features and benefits: This TransGo oversized AFL USA-made valve, completely restores the hydraulic integrity of the circuit. Furthermore, the valve features longer lands, which greatly increases...

4L60E 700R4 High RPM 3-4/FWD Clutch Spring Kit (1982-UP) TransGo

High RPM (3-4/FWD) Clutch Spring KitFits 1982-15 700R4, 4L60, 4L60E, 4L65E, 4L65E This 7-CS clutch spring kit fits 1982 to 2015 General Motors vehicles equipped with the 700R4/4L60, 4L60E, 4L65E and...

4L60E 4L65E Forward Accumulator Piston (1993-Up) TransGo

Forward Accumulator PistonFits all 4L60E, 4L65E, 4L70E 1993-2015 This 4L6-FWD aluminum forward accumulator piston replaces both plastic or aluminum piston and is thicker than the original equipment...

700R4 4L60E 4L65E 4L70E TH200-4R Pump Slide Spring (5-Pack) Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Transmission Pump Slide Spring Sonnax Part Number: 77722-01K Package of 5 Sonnax now offers a high performance pump slide spring 77722-01K for the 4L60, 4L60-E,...

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...

700R4 4L60E 4L65E 4L70E Sun Gear Bushing - HD Wide (1982-UP) Sonnax

700R4/4L60E/4L65E/4L70E Transmission Upgraded Wide Style Reaction Sun Gear Bushing by Sonnax Sonnax Part Number: 77010-01 WARNING