New adjustable vacuum modulator for all aluminum Powerglide transmissions.

This modulator allows you to tailor your shift points within a range of 2-4 mph. This item will also, slightly firm up your shifts if adjusted for later shift points. This can be installed easily in a matter of minutes.

On Jul-07-05 at 12:12:30 PDT, seller added the following information: Increase Sales by 18% and double your hits - Vendio Gallery