Would anyone happen to know if the last windscreen wiper switch fitted to RRC from about 1993 (Part no. PRC8724) can be adapted to fit a 1990 model (Part no. PRC6967)?
They both carry Lucas Model No 218SA but different serial numbers. Externally they look the same but suspect different wiring connection.
Due to short model run between 1988 and 1992 or thereabouts, the earlier PRC6967 seems impossible to get.
Have tried dismantling and cleaning copper contacts twice but still get either part time jerky low speed or no low speed at all. High speed wiping fine.