GM 4L80-E Billet Adjustable Low Band Servo Piston Kit These canisters are made from

These canisters are made from high-quality materials to ensure optimum performance

and 3/8 in

forcing your rear tires to turn at the same speed

Speedmaster large ratio boost sleeve and valve kit address poor line rise

GM 4L80-E Billet Adjustable Low Band Servo Piston Kit These canisters are made fromThe purpose of the servo piston is to apply force to the rear band, controlling the band's grip on the transmission drum during gear changes. Adjusting the rear band is crucial for optimizing shift quality and transmission performance. This adjustable servo enables you to fine tune the rear band's tension with ease, even while the transmission is still installed in the vehicle.