I don't know if it spacer the passenger seat height to match, Don. If your power rack is the 6 way rack, that is. It is designed to have height adjustment to fit the driver.
The power rack switch looks to be just 1 knob for back and forth and the other one for up/down. I will confirm that hopefully tomorrow. If it has a tilt feature, all the more better Once the next owner takes ownership, I will care less of course.
Lazy me as I finally got around to checking the power rack for its functions. Forward and backward, up and down and tilt to the back and front. For the passenger front seat, I will be using one from a 66 Barracuda. I forgot that early A buckets had a bunch of manual adjustments so I’ll adjust the passenger side to whatever is comfortable for the wife