Inside of the seat base there are bolt holes in the base bottom. The
installer slides the seat until the holes in the seat base bottom line
up with the threaded holes in the tracks. The bolts needed are M8 x
1.25, about 15mm long.

The threaded holes in the tracks are provided by brackets that are
installed with the tracks. Vans with stock floor tracks have these in
certain positions but the brackets can be moved to allow additional
choices of seat position along the track.

Mark

Eric Caron wrote:
> Hi listers,
>
>          I have a middle seat for my 85 Westfalia that slide on the rails.  It came with no hardware when gifted to me.
>
> What is the correct way to secure the seat once it has ben slid onto the rails?
>
> Eric Caron
> 85 GL Auto Westfalia
>