Robert, Below is a pic I found in a 67-72 Chevy Trucks forum post that looks like the bracket in Fred''s photo installed on a Saginaw 3 speed with OD. Hoping this helps you along a path to success.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
