Price of 8.75 option for 1967 barracuda
I have only had one 1967 Barracuda, but it had a four speed & 8 3/4 with 3.23 gears.
For 1970 cars I have here right now;
Dart with 318 automatic - 8 3/4 with 2.94 gears.
Coronet - 318 with automatic - 8 1/4 - bigger car, same engine & trans, smaller rear. I have not checked the gear ratio yet.
Valiant 318 with 3-speed manual - 8 3/4 with 3.23 gears
Duster, same as above.
Dart - 225 with automatic - 7 1/4 rear.