Quote:

I'll look for a part number on the VB when I get home tonight.

The PR valve does have a spring within a spring as that is part of the Transgo TF2 kit I just put in it.

Trans was upshifitng at lower RPM before I pulled apart at WOT (about 4400 rpm). From what I read that sounds about right (stock) as trans was from a 3838-2 bbl car. Was going to see if they increased after the TF2 and adjustments before considering changing the governor parts with weights from A&A, but now I will pull that apart to make sure things are moving freely there.

From my reading I thought the later PT kickdown will work on an earlier VB, but it just won't have the feature that downshifts (3 to 2) won't occur after about 40 mph... again I'll look for some casting/part numbers later today and post.

Thanks



Ahh, they must have changed things since I last used a TF-2 kit about a yr. ago. 4400 rpm shifts are about right for that trans. As I mentioned earlier I don't have personal experience about the PT kickdown thing. Like you it's just what I've read and as you may have seen A&A says it won't work. It seems to be a undecided subject.

As for your other question

"Assuming the VB is from 1972 based on the date pinwheel?

This have any bearing on the trans function (trans is a 69)?"

I'd say it's a 72 also and I have swapped valve bodies from 1 trans. to another without any issues. There are calibration differences in them depending on the application they were designed for (granny car, HP car, or truck) but those differences won't generally cause any issues.

68 Cuda 408/904/8-3/4
02 Dakota 4.7 auto