I've recently acquired an older flexicoil 5000, it is a 1997 45' unit. When I got it, the duals on the main toolbar on the rear right hand side were leaning both to one side a bit. Those tires were only worn on one side, so they had been like that for a while. I figured it was likely a bad bushing, but after taking if apart the bushing doesn't really seem that bad. The walking beam looks identical to a new one - the pipe where the stub axles slide in are on the exact same slight angle downward to the outside as a new walking beam. Everything on the machine appears square. I've re-packed the wheel bearings. I'm at a bit of a loss trying to figure out why the wheels aren't sitting straight. Anyone have any suggestions or a similar experience?