I've got a well rusted lower sliding door runner which needs replacing but the step is sound. All I can find for a left hand door is a complete step including runner for £415.80 which is overkill and prohibitively expensive for my old T4. A runner for a right hand door is available for just £39.90, see https://www.vwheritage.com/shop/701803622D/runner-sliding-door-lower-right-t4-90-03/?src=slider . However, I cannot find one for a left hand door. If anyone has found a supplier for this part for a UK van a link would be appreciated.