Over these lo many years, the bitty guide wheel at the top of the Wonderbus's sliding door has gradually pounded a little pocket in the guide track when the door is in the fully upright and closed position. Now, when the door is closed, the little wheel rattles. I did a temporary fix by layering duct tape in there, but it's wearing out quickly and the rattle is returning. 'Bout to drive me loony.
What's the RAMVA-approved pocket-filling compound?