Hi John, thanks for the info, used the 2 screwdrivers and the circlip is now out. Made up a puller with a long bolt / socket and steel plate then removed the duff LS 5 Hoffman bearing....would have thought it should have been a roller bearing, will have to check this one out from the parts list and see if I can get a replacement with double shields as you suggested...thanks again for your help.
Howard