TCI Vacuum Modulator - Adjustable - GM - Powerglide - 1963-73 H77603FM The new aluminum medium dish

The new aluminum medium dish structure allows the wheel to come towards the driver to facilitate the usage of aftermarket MPI hubs or quick releases

Holley Sniper continues to push the aftermarket by introducing fabricated carbureted and EFI intake manifolds for GM Small Block and LS along with Ford 4

Will fit most side mount fifth-wheel hitch applications

this unit is simple to calibrate and designed with the type of durability you expect in an AutoMeter gauge

 Lap Belt Adjusts 40†³ to 78†³

TCI Vacuum Modulator - Adjustable - GM - Powerglide - 1963-73 H77603FM The new aluminum medium dishGM '63 '73 Powerglide Adjustable Vacuum Modulator Valve. This TCI Adjustable Modulator Valve is designed specifically for GM '63 '73 Powerglide Transmissions. The vacuum modulator is a vital component of automatic transmissions. It tells the transmission what kind of load is being put on it, allowing the transmission to react with the proper line pressures and shift points. Over time, modulators can develop leaks, suffer ruptured diaphragms, become