What Differential Do You Have in Your 1965 Barracuda?

I'm claiming "closest to the pin" on my memory banks.

They definitely changed application parameters in 67.

Every V8 1966 B body I've ever owned has had a 741 case 8 3/4.

The only 67 I've ever had with an 8 3/4 is my wagon, all others (318 cars) have had a 7 1/4.

Now I want to see what case is under that unmolested wagon.