SKU: TCI280001
UPC: 788120036641
MPN: 280001
The Adjustable Vacuum Modulator 1963-1973 is a precision-engineered component designed for vehicle enthusiasts and mechanics working with classic General Motors transmissions. This part serves as a critical interface between the engine's vacuum signal and the transmission's shift timing, ensuring that gear changes occur at the appropriate load points. By replacing a worn or non-adjustable unit, you can regain control over your vehicle's drivability and performance during daily commutes or spirited driving. It is an essential upgrade for anyone looking to maintain or restore a vintage Powerglide system to its optimal operating state.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
