GM 6T70 and 6T75 Gen. 1 early- and late-style units cannot be interchanged but are very similar in appearance. Reference the Sonnax identification guide to verify the correct valve body is installed.
Sonnax remanufactured valve body GM6T70-1L has been designed to address common issues, such as: codes P0741, P0742; harsh TCC apply; TCC slip; solenoid performance codes; wrong gear starts; slips and flares; delayed engagements; burnt clutches; low converter and lube flow; and erratic line pressure.
To guarantee the highest level of operational performance, this remanufactured valve body is tested on state-of-the art equipment to verify that actuator feed limit pressure, clutch pressures, torque converter pressures, and line pressure match OE specification.
A TEHCM is not included with the valve body, but is available from OE and various aftermarket sources if required.
Save your existing manual valve for reuse with our remanufactured valve body.
October 27, 2014
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January 05, 2018
Topics: Transmission GM 6T70 (Gen. 1) Transmission 6T75 (Gen. 1) Transmission 6T75 (Gen. 2) Transmission 6T80 (Gen. 2) Transmission 6T70 (Gen. 2) TransmissionRead Now
February 12, 2018
Topics: Transmission Report Newsletters Transmission Ford GM ZF 6T70 (Gen. 1) Transmission 6T75 (Gen. 1) Transmission 6T75 (Gen. 2) Transmission 6T80 (Gen. 2) Transmission 4L85-E Transmission 4L80-E Transmission 6T70 (Gen. 2) Transmission 6F35 (Gen. 1) Transmission 6F35 (Gen. 2) TransmissionRead Now
October 18, 2018
Topics: Identification Guides Transmission GM 6T70 (Gen. 1) TransmissionRead Now
|GM Gen. 1 6T70 & 6T75 Identification Chart|
|Model Year||3-5-R Clutch Reg. Valve||Lower Separator Plate||Upper Separator Plate||Exhaust Port||Control Valve Channel Plate|
|2007 & 2008||1.35 Ratio||Cut Out||No Notch||Closed||Level with Valve Body|
|2009||1.83 Ratio||Notch||Notch||Closed||Level with Valve Body|
|2010 & 2011||1.83 Ratio||Circle Hole||Notch||Open||Level with Valve Body|
|2012 & 2013||1.83 Ratio||Circle Hole||Notch||Open||Raised Notch Above Valve Body|
|Lower and Upper Separator Plates|