In a message dated 1/22/04 3:12:54 AM, andrew.grebneff@STONEBOW.OTAGO.AC.NZ
writes:

<< The RSA grill uses one twist-fastener in the center and 2 (or as it
4?) clip-fasteners around the headlights. The stock round-light
German vans use only twist-fasteners, but actually came with the lugs
that fir the RSA grill. So it's a direct swap. The RSA grill comes
without the center twist-fastener, so you'll need to remove one from
your own grill... it fits straight in. >>

The SA grille has a total of 6 mounting points.  There are 4 integral stab-on
studs(2 left, 2 right), a top center 1/4 turn fastener and a screw at bottom
center.  Receptacles for the 5 attachment points along the top edge of the
grille are in place on the round headlight vans prior to 1986.  When installing a
SA grille on an '86 or newer US van, only 3 of the 6 receptacles are in place
once the headlight buckets are installed.  Additional accommodations have to
be made for 2 stab-on studs (inner right and inner left) and for the bottom
center screw.

George