I made a rack for my 1951 chevy 3100. Someone asked if i wanted to send him the measurements i used. So I tought: "why don't share it with the rest of the community?" So here they are. Note that i'm from the Netherlands so i use Centimeters. But I wrote the inches on it. I suggest to measure or convert it for yourself so they are correct. I also put the length between the poles in it. Check if they are the same as yours before you make the rack yourself!