Here's the steps I took to convert my 74 to the earlier adjustable sway bar setup. Or at least the chassis mods needed to accept either stock or aftermarket ARB.
All my parts were homemade, but similar parts are available in the aftermarket.
Before:
I decided to add stiffening plates that tie into the neighboring wall sections. Here's the first plate
Roughed out with my plasma cutter:
Here's the nut plate before I put the center hole in:
The strengthening plates were made in two pieces to preserve the vertical or perpendicular factory depressions. These mock up parts ensured that the mount is square with the ARB
Here it is fully welded except I forgot to put the brake line bracket back on....easy.
Here's the full video on my YouTube channel if you want more detail tips and tricks!
Thanks for watching!