Sonnax introduces drop-in 4-5-6 sleeved accumulator piston kit for GM 6T series
Sonnax has introduced a drop-in 4-5-6 sleeved accumulator piston kit (part no. 124740-68K). The company says users can recover hydraulic control and renew shift feel and performance in GM 6T70, 6T75, 6T80 (Gen. 2) transmissions by installing this kit. This kit provides a positive sealing O-ringed sleeve to eliminate oil leaks and restore normal shift
How to get around non-serviceable GM 6T70/75 self-tapping pump screws
General Motors designed the 6T70/75 transmission fluid pump to be a non-serviceable component.
