Product Details

Sonnax 77704S high performance 1-2 accumulator spring GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E

• Part number: 77704S
• Brand: Sonnax
• Quantity: 1 spring
• Transmission models: 700R4, 4L60E, 4L65E, 4L70E
• Makes: GM, Cadillac, Chevrolet, GMC, Pontiac, Oldsmobile, Hummer, Isuzu, Saab
• This spring provides: Firmer 1-2 shifts.

The spring design provides a performance shift feel but does not reduce accumulator piston travel. This allows for a firmer, but still cushioned shift that minimizes shock to the band and shafts.

This spring works in all makes of this transmission, including:

Buick

• Rainier, 2004-2007
• Roadmaster, 1992-1996

Cadillac

• Brougham, 1994-1997
• Escalade, EXT, ESV 1999-2006
• Fleetwood, 1994-1997

Chevrolet

• Astro Van, 1985-2005
• Avalanche, 2002-2008
• Blazer, 1982-2005
• C1500, some C2500, 1993-1999
• Camaro, 1982-2002
• Caprice, 1982-1996
• Corvette, 1982-2005
• Impala SS, 1994-1996
• S10, 1993-2004
• Silverado Truck, 1982-2013
• SSR, 2003-2007
• Suburban, 1982-2013
• Tahoe, 1993-2013
• Trailblazer, 2001-2009
• Van, 1983-2013

GMC

• Canyon, 2004-2012
• Colorado, 1994-2012
• Envoy - XUV – Denali, 2001-2010
• K1500, Some K2500, 1993-1999
• Safari Van, 1985-2005
• Sierra Truck, 1982-2013
• Sonoma, 1993-2004
• Syclone 1991-1993
• Typhoon 1991-1993
• Van, 1983-2013
• Yukon, 1993-2013

Hummer

• H2, 2003-2007
• H3, 2006-2011

Isuzu

• Ascender, 2003-2009
• Hombre, 1996-2000
• Pickup, I280, I350, I290, I370 2006-2009

Oldsmobile

• Bravada, 1991-2004
• Custom Cruiser Wagon, 1982-1992

Pontiac

• Firebird & Trans Am, 1983-2002
• GTO, 2004-2006

Saab

• 9-7, 2005-2009

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.

This spring 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.

The Sonnax spring also may be used as a replacement for the TH350 direct accumulator piston spring.