did one last year, got a welder geezer to build one up as near to the original one is, dressed it up to same pattern as original then gave both covers to brother who did the holes same as original one , its on the bike now and the original is for another ss engine, original ones are too much money--- get one built up and engineering shop will bang the holes in at the correct angles, think welder man charged £20 E D ITTT sorry you mean 2to 1 drive , I went to the pub--- not with it yet--- yes its been covered somewhere I THINK