B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions PANTS Cast from High Silicone Ductile

Cast from High Silicone Ductile Iron

Flow matched

This full kit can be installed at home and can be completed efficiently and quickly

Featuring a massive 2

1040281 required for first time replacement of Injectors for engines with a serial numbers less then 56462598

B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions PANTS Cast from High Silicone DuctileThe 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.