B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions Shooting Chest Rig Precision engineered and machined in

Precision engineered and machined in the USA from billet aluminum

Instant response and performance gains across the board

This basic dry sump fits almost all applications and is built 4-1/2" deep to permit low engine installations

as well as providing clearance for larger tires

When most alternators look the same on the outside

B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions Shooting Chest Rig Precision engineered and machined inThe B&M vacuum modulator is fully adjustable and allows you to fine tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum line connection for more or less diaphragm preload, thus raising or lowering part throttle shift points and line pressures. For GM TH350 and TH400 automatic transmissions.