Right , this piece will mount to the exsisting runner section using 4 drilled holes which line up bsng on.

i mounted it with the lever at the front.
this will (if im thinking right) alow the whole lot to slide back and forth.
the next bits im not too sure about.
i tried mounting this bit to the base but just doesnt look right, well it does but doesnt seam to fit.

the seat will then need mounting to this plate. yeah?
does the lever on the swivel section sit over the walkway?
Sorry but im confused.
