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Every transmission rebuild should include a new vacuum modulator. Our Summit Racing™ Adjustable Vacuum Modulators allow you to tailor the shift points up or down a few hundred RPM and dial in your GM turbo Hydramatic transmission to shift right where you want it.
( 33 )
$21.99
On Sale
B&M adjustable vacuum modulators let you adjust your shift points within a range of 2 to 4 mph. With a gold cadmium finish and an O-ring seal to stop leaks, they will look as good as they work.
( 29 )
$48.35
$43.52
Vacuum modulators are designed to tell your transmission what kind of load is being put on it and react with the proper line pressures and shift points. Over time, these modulators can develop leaks or get damaged, causing driving issues and even premature transmission failure. TCI solves this dilemma with these adjustable modulators. Not only do these modulators 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 of the vacuum nipple for more or less diaphragm preload.
( 9 )
$23.95
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$35.95
When your classic isn't shifting properly, Scott Drake vacuum modulators could help. These automatic transmission pieces are a vital component that tells the transmission what kind of load is being put on it, allowing it to react with the proper line pressures and shift points. They are offered to fit directly in the factory location of the current throttle valve in many Ford classics. Improve the performance of your transmission with new Scott Drake vacuum modulators.
( 4 )
$35.65
Improve slow, sloppy shifts with the addition of ATP automatic transmission modulator valves. These valves will keep your transmission shifting on cue, according to load. ATP adjustable replacements allow you to optimize shift points to meet vacuum load and improve gas mileage and performance. A bad modulator valve can be bad news for your transmission. Get control of your transmission for proper shifting of increased or decreased engine vacuum loads. Replace improper working valves with ATP automatic transmission modulator valves.
( 47 )
$10.99
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$47.99
If your transmission is sending up smoke signals, then there could be a problem with your modulator. Replace old factory preset models with TCI adjustable vacuum modulators. These transmission modulators are available for several applications and allow you to fine-tune your shift points and shift feel. Simply adjust the screw inside of the vacuum nipple for more or less diaphragm preload. Your transmission relies on the vacuum modulator to function properly, and you can rely on TCI and their adjustable vacuum modulators for renewed performance and the ability to slightly raise or lower part throttle shift points and line pressures.
( 14 )
$33.95
Great for transplants! TransGo Automatic transmission modulator conversion kits provide a more aggressive and tunable pressure boost curve with engine vacuum instead of the vehicle PCM controlling PCS/EPC solenoid. TransGo modulator conversion kits include everything needed to add the internal modulator system with the oil pan off the transmission. From the outside of the transmission, you will need to connect it to an intake manifold vacuum source, however hardware is not provided for this. The kits do come with an oil pan-based resistor to pacify the control module for the missing EPC solenoid in applications where the computer will still manage the gear changes. TransGo includes: * Pressure regulator valve spring and snap ring * Brass fitting * Vacuum modulator, pin, valve, and bushing * Hold-down bracket * Elbow vacuum hose and spring * Four short zip ties * Five long zip ties * Vacuum tee * Resistor
( 2 )
$123.57
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$135.14
These Standard Motor automatic transmission modulators are designed to replace faulty factory units and help restore your factory shift points. They are available for a variety of applications.
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$27.99
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