I have a couple of spindles that were represented to me as 46-48 Ford spindles. They don't measure up right, though. The distance between backing plate bolt holes is 3 inches square, whereas the proper ones that everybody uses are 3 3/8 inch as I understand it. I discovered this when trying to install my new Speedway brake kit and was so disappointed. I got to get this chassis off the shop floor. The spindles and kingpins fit my axle just fine. I have looked and searched, but few diagrams show the bolt circle spacing measurements that match up with these spindles. The steering arms are cast on, not bolted, and set up for cross steering with 2 tie rod ends on the right and 1 on the left. Does anybody have an idea of what I have? 35 ford? 36 Ford? Hupmobile??