48in Tire Rack Add-On Kit Pit Pal 294E. Easily to full extension Adjusts in or out for different tire diametersAdd-on kits make the tire rack longer in 48" and 64" sections. Get organized and keep your trailer looking professional with Pit Pal aluminum shelves, racks, brackets, hangers, holders, pouches, and mounts. Pit Pal products give you a place to put everything things like oils, fluids, ratchet straps, and other tools right where you can find them in one convenient area. By knowing where items are located, you can spend more time concentrating on your next round and less time searching for your stuff. They're ideal for garages and shops, too.