My 3-point belt connects thru the existing seat belt holes in the floor pan.  Don't you have seat belts?  I thought all '66's had belts.

Well, this might work.  Pix are crappy but maybe they will give you the idea.  Also, the brackets I made are not 90 degree.  Just enough angle to hold the retractor vertical and bolt through the rolled area of the floor pan.

Last edited by Bullet Bob (9/10/2021 10:03 AM)

Here are some pictures of my install this spring.
Seatbelts are from Wesco with a long “c” end link.
I placed my anchor point slightly in front of the torque box.
I used a Unistrut square washer as a temporary shim to almost level my 1/4” anchor plate.
I wanted the thick washer to be captured, therefore I didn’t just notch it.
Eventually I will make a thicker shim to make it truly level, and all will be welded.
My 1/4” anchor plate is tapped for bolt too…didn’t care for the large fender washer in hardware kit.

Welding will be done after subframe connectors get installed first in near future.
Just don’t want to hack it up floorboards more than needed.

Red circle on upper anchor bracket is where coat hook is located for reference.

Hope this helps.

No complaints from passenger side. 😁

Last edited by Nos681 (9/11/2021 8:50 AM)

Definitely have to give credit to Bolted to the Floor, Bearing Bob, and Bullet Bob.

They shared information that made my install easier.
Thanks again guys.