help with modifing 69 mustang seats.

[65modified]

I saw a old posting from darkbuddha that his Dad made a bracket to allow the back of a 69 Mach 1 seat tilt back. he said he had it posted on web but I have looked for hours and cannot find the instructions. I am putting these in a 65 FB. I know many ideas about which seat is best, but we like the 69's. If he could email me or point me to the how to on this bracket that would be great.