Ships free, or upgrade to flat rate expedited 1-3 day shipping for $5.99!
Sonnax 700R4 Overdrive Billet Super-Hold Servo 4L60E 4L60-E 4L65E Automatic Transmission OD
OPT Product Code: SNX-77767K
Product Details
The Sonnax 4th gear billet overdrive servo is a must for any high performance transmission.
This outstanding product from top manufacturer, Sonnax Industries, is compatible in the following transmission applications:
- 700R4
- 4L60E
Many 700R4 and 4L60E transmissions experience band failure due to the insufficient holding power of the 4th gear servo piston. This Sonnax 4th gear billet servo is manufactured to directly combat that problem with its 40% increased surface area, which gives it incredibly reliable holding power.
This improved Sonnax piston installs easily into any 700-R4 or 4L60-E application without having to remove the transmission from the vehicle.
Item includes:
- 4th Gear Piston
- Housing
- Seals*
*A replacement seal kit can be purchased under part number SNX-77767-SK, if needed.
The Sonnax 4th gear overdrive servo can be installed in conjunction with the popular corvette servo (part number NTP-K51828C), or the corvette servo with long pin (part number OPT-CV-PIN). Just be sure to watch your pin clearance, as the 4th gear billet servo does produce a tighter fit in the transmission. OPT recommends a .070”-.080” servo travel.
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 (Could have TH200-4R)
- Colorado 1994-2012
- Corvette 1982-2005
- Custom Cruiser Wagon 1991-1992 (Could have TH200-4R)
- 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
- S-10 1982-up
- 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
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
-th.jpg "ATSG 700R4 Rebuild Manual 4L60 GM Automatic Transmission Overhaul Book Service Guide 87-1993 700-R4")
