Product Details

SK 4L60E Transgo Shift Kit for the widely used 4L60E GM automatic transmission.

Shift kit specifications:

• Manufacturer: Transgo
• Part number: SK 4L60E
• Transmission make: Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, and SAAB
• Transmission model: 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70
• Year range: 1993-2010
• Speeds: 4 speed automatic overdrive
• Drivetrain type: RWD, 4X4, AWD
• NOT for Hybrid models

The SK4L60E Transgo Shift kit includes the following features:

• Includes the new "ISO-CONV valve." A one-piece valve that replaces both the OEM isolator and converter regulator valves, upgraded with spacer for vehicles with cylinder deactivation.
• Addresses and fixes trouble Code 1870
• Fixes light or hard 1-2 shift
• Remedies no lockup and-or 4^th gear
• Corrects damaging harmonics and extreme bounce in pressure gauge readings on PWM (Pulse Width Modulated) pump that causes pump failure and/or premature wear on valves and pump assembly
• No special tools or machining necessary
• Experienced technician recommended for installation
• Transmission removal is not necessary for installation

The SK-4L60E shift kit contains the parts, including valves, springs and drill bits necessary for an extensive recalibration of this unit, regardless of vehicle size, power, engine or gear ratio combinations.

This kit is a must for this transmission. Not only will it shift quick, clean, and smooth, but it addresses the most serious complaints that have plagued this unit over the years. With this kit durability and dependability are greatly increased.

Additionally, you can add the following transmission upgrades and options to this valve body correction kit:

• Valve body gaskets
• Filter kit with Duraprene pan gasket
• New Transgo hardened and updated separator plate
• 2^nd gear servo – Corvette and billet Superior or Sonnax
• Overdrive billet servo – Superior or Sonnax
• Boost valve - .470”, 472”, .490”, .500”
• Pinless 1-2, 3-4, and forward accumulator pistons – to replace OEM plastic
• Full electronics kit – shift solenoids, TCC solenoid, wire harness, 3-2 solenoid, EPC
• ATSG rebuild manual
• ATSG update – supplement book to the rebuild manual
• ATSG code book
• Assembly Grease - Lubegard, Life Smart Blend, or Transjel
• Platinum Lubegard - Insider tip: Many shops use this synthetic supplement in every freshly rebuilt transmission to keep them on the road past the warranty.

The 4L60E and its variants were in production from 1992-2013 and can be identified by the square 16 bolt oil pan and 4 forward gears. 1992-1993 are cross-over years, so your vehicle could have the earlier non-electronic transmission instead.  If unsure of your model, the 4L60E can be differentiated by looking at the wire plug going into the transmission. The non-electric shift will have a square wire plug with 2-4 wires. The 4L60E will have a round plug with 11 wires.

The 4L60-E was found in the full range of General Motors vehicles including, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, and SAAB.

The 4L60E transmission can be found in the following vehicles; however, you should double check your application with the 16 bolt pan count. It is common for similar vehicles to have multiple transmission options available from the factory.

• Astro Van 1993-2005
• Avalanche 2002-2008
• Blazer 1993-2005
• Bravada 1993-2004
• Brougham 1994-1997
• Camaro 1994-2002
• Canyon 2004-2010
• Caprice 1994-1996
• Colorado 1994-2010
• Corvette 1994-2005
• Envoy - XUV - Denali 2001-2010
• Escalade, EXT, ESV 1999-2006
• Firebird & Trans Am 1993-2002
• GTO 2004-2006
• Hummer H2 2003-2007
• Hummer H3 2006-2010
• Impala SS 1994-1996
• Isuzu Ascender 2003-2009
• Isuzu Hombre 1996-2000
• Isuzu Pickup, I280, I350, I290, I370 2006-2009
• Fleetwood 1994-1997
• Rainier 2004-2007
• Roadmaster 1994-1996
• SAAB 9-7 2005-2009
• Safari Van 1993-2005
• Sierra Truck 1993-2010
• Silverado Truck 1993-2010
• SSR 2003-2007
• Suburban 1993-2010
• Tahoe 1993-2010
• Trailblazer 2001-2009
• GMC & Chevy Van 1994-2010
• Yukon 1993-2010

The Transgo SK 4L60E shift kit fits the following years: 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010.

These transmissions are part of the Turbo-Hydramatic series and also known as: 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70

This Transgo valve body upgrade kit is sold under multiple part numbers including: T74165E, K51944E, TG-SK-4L60E, SK-4L60E, K77908A, K61908E, 7005170BN