C6 trans vac modulator

Cougar Community Classic Cougar Maintenance Restoration and Repair
1

Have a 67 390/C6 cat. Vac modulator is bad- leaking fluid into vac hose. Looks like it was bent during “work” done in the past. It looks to have a orange stripe. Can’t seem to find correct info on the "correct one to purchase.

Any help is appreciated.

2

Nothing special about it Ford used the same one for years:
https://www.ebay.com/itm/1964-1973-Mustang-C4-C6-Automatic-Transmission-Shift-Modulator-Valve-44-36286-1/114466628283?fits=Year%3A1967|Model%3AMustang&hash=item1aa6be22bb:g:4YIAAOSwgiZfic~F



3

Thanks Royce!
Confusion was w/ color. Seems this cat has a orange stripe one. Looks like that is wrong.

What is the difference w/ all these?

4

No idea, maybe it’s a certain brand. Lots of different companies have made them over the years.


5

The color simply shows how it is adjusted from the factory.
You can do the adjustment to match your preference with any of them. IIRC in (clockwise) makes later shift points.

If you are all the way one way or the other and want more adjustment there are 4 pins of different length that ‘add’ some adjustment.

  1. 1.601-1.611"
  2. 1.634-1.644"
  3. 1.650-1.660"
  4. 1.666-1.677"
    You can make your own using a metal coat hanger.