6T80 Archives - Transmission Digest
GM 6T70/75/80 (Gen. 1 & 2) Jig Plate

The new plate can be used with both Gen. 1 and Gen. 2 oversized actuator feed accumulator piston kits.

GM 6T70/75/80 (Gen. 2) Oversized Actuator Feed Accumulator Piston Kit

The new oversized actuator feed accumulator piston kit re-establishes correct clearance for revived shift control in all ranges.

GM Gen. 2 6T70, 6T75 and 6T80

Critical Wear Areas & Vacuum Test Locations

Valve body – GM Gen. 2 6T70, 6T75, 6T80 – Vacuum testing

Critical Wear Areas & Vacuum Test Locations
NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise
indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity.
A low vacuum reading indicates wear. For specific vacuum test parameters,
refer to additional information available at www.sonnax.com.