In a message dated 99-06-18 08:16:16 EDT, BDOSS24046 writes:

<< so, if you weld the swivel mechanism to the floor, do you lose the ability
to slide the seat fore and aft? >>

no. the track is on the upper swival part.  not the welded part.  know anyone
with a westfalia?  look at their swival seat setup.  when re-installed in
your van, it will be just like installed from the factory in a westfalia.

chris