Dave, I searched for same over last 12 months. There are some repro models but I have been told their quality is less than perfect. I found several on Ebay but a nicely restored one sold for around $400...WoW! ....and non-restored ones were just too much $ for me. So I made my own. The angled channel was already in place and I crafted a slider plate to fit in the channel with 2 pieces of 1/2" allthread to secure the tire. Yesterday, I saw that JCWhitney sells a U-shaped spare retainer for about $10 which might work. Good Luck. Paul
