New USA made Corvette servo piston kit for the GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E THM700-R4 MD8
This servo is a must for any performance, towing, RV, or off-road transmission, but would be a nice upgrade for any 700-R4 or 4L60E.
Right away you'll notice faster and firmer 1-2 shifts and even slightly better 2-3.
This servo will give your transmission 50% more apply pressure, just what you need to keep from burning your transmission up under heavy load situations.
For the price, the Corvette servo is the best upgrade you can make to your 700R4, 4L60E, 4L65E, or 4L70E automatic transmission. Installing this servo in lower mileage vehicles can add years to your transmission’s life. Higher mile transmissions can also benefit and help to postpone a costly rebuild.
This servo is easy to install and can be done with the transmission in the vehicle.
The recommended servo travel is 1/16”-1/8”. Getting your servo within this travel range can make the shifts even quicker and add more miles and years to your transmission’s life. The long servo pin option on this item can help to get this travel within the correct range. We are finding that when using the billet overdrive servo in conjunction with the corvette servo, this correct travel range is crucial. Any travel over 1/8” can create a situation of no overdrive.
The kit comes with all of the necessary seals for installation including the outer cover o-ring.
This servo works in all makes of this transmission. GM, Cadillac, Chevrolet, GMC, Pontiac, Oldsmobile, Hummer, Isuzu, Saab, including:
- Astro Van 1985-2005
- Avalanche 2002-2008
- Blazer 1982-2005
- Bravada 1991-2004
- Brougham 1994-1997
- Camaro 1982-2002
- Canyon 2004-2012
- Caprice 1982-1996 (With optional 700R4)
- Colorado 1994-2012
- Corvette 1982-2005
- Custom Cruiser Wagon 1991-1992 (With optional 700R4)
- Envoy - XUV - Denali 2001-2010
- Firebird & Trans Am 1983-2002
- Fleetwood 1994-1997
- GTO 2004-2006
- Hummer H2 2003-2007
- Hummer H3 2006-2011
- Impala SS 1994-1996
- Isuzu Ascender 2003-2009
- Isuzu Hombre 1996-2000
- Isuzu Pickup, I280, I350, I290, I370 2006-2009
- Rainier 2004-2007
- Roadmaster 1992-1996
- SAAB 9-7 2005-2009
- Safari Van 1985-2005
- Sierra Pickup 1982-2013
- Silverado Pickup 1982-2013
- SSR 2003-2007
- Suburban 1982-2013
- Syclone 1991-1993
- Tahoe 1993-2013
- Trailblazer 2001-2009
- Typhoon 1991-1993
- GMC & Chevy Van 1983-2013
- Yukon 1993-2013
Industry Part Number: K77895
OEM Exchange # 8642079, 8673039, 8647351
These transmissions are part of the Turbo-Hydramatic series and are also known as: 700R4, 4L60, 700-R4, TH700-R4, MD8, THM700R4, THM700-R4, 4L60E, 4L60-E, 4L65E, 4L65-E, 4L70E, 4L70-E, 4L75E, 4L75-E, M30, M32, M70.
The Corvette servo works in all models and years of this transmission, including: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, and 2013.