2 questions relating to 65 Chevy truck. Ps bracket & blinker or lack of

[Captainfab]

The adapter plate not only locates all 4 holes for you, with the supplied template, but it also spaces the box outward to compensate for the lack of an indent on the '67 and earlier frames.

Originally Posted by cab_01

So I need one of these for the 78 power steering box to mount to my 65? I haven't pulled it from the 78 yet but it looked like a direct bolt on. I may be wrong about that, but please explain what this bracket does?