NOS Vacuum MODULATOR 1963 Tempest
 

GM factory part in it's original dealership parts department box. This is a Vacuum modulator for a 2 speed automatic transaxle.

Fits 1963 Tempest & Lemans, cars with the 4 cyl., 195 ci engine only.

The original part # for this was 7022720 later changed to 3016640.

This has never been put on a car. $100+postage

NOTE: this one is specific to 4 cyl cars only.

V8 cars used a similar valve but with a stiffer spring inside.