need help installing Rennline passenger floorboard
 

I called Rennline and purchased a perforated passenger floorboard but it seems I have no idea how it mounts.
There is a large arc/half circle that goes over where the bottom screw hole is... am I missing something? Also, there are 2 tabs on the top with holes that appear that I would also need to screw them in something?

I'm seriously confused with how this thing is supposed to attach.
Maybe I'm an idiot, but you'd think Rennline would at the very least include a simple diagram, picture that shows the mounting points circled.

Thanks for your help all!!

There should be a stud comping out of the floor for the half circle. If you look under the dash there will be two raised areas the the two tabs slide into with no screws.

There is a semicircular washer-like fitting that goes over the stud on the floor and fits over the half circle shape in the floorboard. Rennline sells one:

Rennline Stainless Steel - Floor Board Hold Down Bracket - Porsche-Rennline, Inc.

Also, fold or bend the tabs that fit into the slots at the top, or you will have rattling.
Good luck,
Dave

so why are the two tabs (one bent, one straight) have holes in them??

My 71 has leather straps the go through the slots in the tabs.