300D automatic "adjustment"

[Shelbygt350]

I am helping my friend with some research. He has a 300D with an automatic tranny. He was told there is a slot where you can insert a flathead screwdriver to modify the shifting. Where is this slot located? I think the car is a 84. Any help would be greatly appreciated. E-mail me at [email protected]

[talonlover]

probably talking about the modulator valve. You can tone down how hard the transmission shifts by turning out about 1/2 turn(I think it's out, maybe in)and driving it to see how you like it. It's just a trial and error thing and a little bit of driver preference. the modulator valve is probably either red or green on that car so it's easy to spot on the side of the tranny.

[podunk]

You can pop that red or green cap off and underneath you will find a "T" shaped metal tab in most cases.
Turning the tab clockwise will harden the shift points, but do try small increments of adjustments at a time. The red or green cover has slots around the "ID" that holds the metal tab in place.

[j_hef]

just remember when you adjust that for softer shifts, you ARE making the trans slip, so do it in moderation.