The Stovebolt Site Forums The Shop Area Interiors Seat adjusters - a few questions (1951 3100)

I agree with Jon, they could be made fairly easily. The steel is about 1/8" thickness. You might have to be careful about overheating the track where the balls run.

Here's some pics with dimensions. The platform that the two bolts extend from are on the same plane, as indicated by the square laying across them. The top just needs to be big enough to provide a platform for the seat frame to sit on. Note that the weight doesn't just bear on the spot welds, but the bracket sits on top of the rail, then wraps over the sides for spot welding. I'd form some steel in a U-shape, fit it on in the right place over the rails and weld the front of the "U" closed to give it some rigidity (no need to mess with stamping it in the same shape as the originals.)