Originally Posted by jyasaki
For a cheaper route (sorry, Jack), a trip to the local plastics supplier and a bit of cash for HDPE bars, about 1/4" to 1/2" x 4" or 6" by however long you need them, plus a bit of time to countersink holes will do the trick. If you can find it, UHMW is a bit harder material, but it's also more expensive.
Jack: I was thinking that you only need the glides on the forward part of the bunks, since the boat should be contacting partways up when recovering. When launching, the stern will try to float off before the supported bow lets go. Seem right to you?
Yes UHMW might have been cheaper, if I wanted to find it, drill and countersink all the holes and basically make them.
At alot of my launches the stern won't float off at all. At least not until the truck is partly in the water. They are generally decent launches at high tide, but low tide is often a no-go. So I put glide on the whole bunk. In the grand scheme of boating, $125 was really nothing. These work great and they fit perfectly so I'm happy with them.