If your Paddy Wagon is like ours and the clamp looks like the photo that old guy posted... It is a simple pipe clamp that can be purchased at most any big box home supply like Home Depot. You just need to know what size pipe you have on your paddy wagon. they make them for 3/4" (most likely) or 1/2" steel pipe. The problem is you have to purchase both of of the clamp, but they are less than $15 for the set.