I have a sliding door roller for sale, a spare from my resto these are going for 36 quid on VW Heritage- See Link below Looking for £25 quid plus postage Sliding door vertical/side roller to fit the lower bracket. (fits on the horizontal pin) For Bay Window Camper vans 68-79 http://www.vwheritage.com/vw_spares_Lower-roller-vertical-for-horizontal-pin-68-79_act_shop.product_pID_75556_lang_EN_country_GB.htm