High Performance Parts

4L60E TCC Regulator & Isolator Valve Kit by Sonnax (1993-1997)(Requires Tool 77752-R2)

TOOLS REQUIRED: 77752-R2 In GM 4L60-E, 4L65-E and 4L70-E unit, severe wear of the TCC regulator valve bore is caused by oscillation of the OE valve allows regulated converter apply pressure to exhaust. This is a primary cause for TCC-related slip code...

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)

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 pistons on your 1982-1993 700R4 or 1993-E1997 4L60E.

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 our own GTP High capacity 3-4 Pack. This steel module...

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 foundation for high-performance racing. All...

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

Teeth 20 Waved/Flat Flat Thickness (Inches) .095 Thickness (mm) 2.41 ID (Inches) 4.995 ID (mm) 126.87 NameYears 4L65-E 2001 - 2007 4L70-E 2006 - 2009

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 4th accumulator pressure. Scoring...

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 for TCM shift controls. This TransGo 46-MOD kit fits...

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 durability by redistributing the load over a greater...

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 4L70E automatic transmission. High-revving engines...

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 design to prevent premature wear and breakage. Features:...

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, 4L65-E and 200-4R. In high performance applications, when...

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 GM 4L60-E, 4L65-E and 4L70-E transmissions. The spring...

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 Measure the sun gear bore. Installing this bushing into a bore that is smaller than 1.705”-1.706” will result in...

700R4 4L60E 4L65E 4L70E SmartShell® Heavy Duty Reaction Shell Kit (1982-UP) Sonnax

Sonnax 700R4/4L60E/4L65E/4L70E SmartShell® Heavy Duty Reaction Shell Kit Part No. 77749-02K Solves Multiple Problems in All Performance Applications In GM 4L60, 4L60-E, 4L65-E and 4L70-E units, bulky aftermarket shells always fall short...

700R4 4L60E 4L65E 4L70E HD Reaction Shaft Kit (1982-UP) Sonnax

Sonnax 700R4/4L60E/4L65E/4L70E Transmission Heavy Duty Reaction Shaft Kit Sonnax Part Number: 74602-01K Universal kit, fits all years and all input carrier styles. OE Part No. 19369220, 19356510, 24236094, 24241255, 24222756 GM 4L60E series reaction...

700R4 4L60E 4L65E 4L70E HD Overrun Clutch Hub (1982-UP) Sonnax

700R4 4L60E 4L65E 4L70E Transmission Heavy Duty Overrun Clutch Hub Sonnax Part Number: 74574-HD The overrun clutch hub found in GM 4L60 (700R4), 4L60E, 4L65E and 4L70E units is highly susceptible to cracking and breaking in applications such as...