TCI Automotive GM TH350/TH400 Adjustable Vacuum Modulator Valve. 350001TCI

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 bent, etc. Not only can this cause annoying drivability issues, it can lead to premature transmission failure. TCI comes to the rescue with this line of new, adjustable modulators. Not only will you renew performance, but you will also have the ability to slightly raise/lower part throttle shift points and line pressures. Simply adjust the screw inside the vacuum nipple for more or less diaphragm pre-load.

Specifications:

Description_INV	GM TH Modulator Valve
Description_ASC	For Powerglide valve, see 280001.
Description_DES	GM TH350/TH400 Adjustable Vacuum Modulator Valve.
Description_EXT	This TCI Adjustable Modulator Valve is designed specificlaly for GM TH350/TH400 Transmissions.
Description_MKT	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 bent, etc. Not only can this cause annoying drivability issues, it can lead to premature transmission failure. TCI comes to the rescue with this line of new, adjustable modulators. Not only will you renew performance, but you will also have the ability to slightly raise/lower part throttle shift points and line pressures. Simply adjust the screw inside the vacuum nipple for more or less diaphragm pre-load.
Description_DEF	Automatic Transmission Modulator Valve