Thanks for the input guys.
I'll measure the OD on my seat frame (I made these a while back and have forgotten now).
I'll start making these in a month--got a few ducks to get in a row before then. (First and foremost, fixing my band saw! The motor vibrated itself off the mount two weeks ago while we were cutting the clamps out for my truck, and hit the floor, ripping the electric cord out the back of it with a large flash. Boy Wonder and I just stood there looking at it for a second in shock. Then we left for Bonneville!).
-Brad
