call Northern auto parts in Sioux City Ia 800-831-0884 and order the DuraBond PD-16 I believe or P4876372 ask for Matt Edwardson he can look them up to make sure. I used to work there in 09.

70 Duster W8 motor.
1.29 60ft 5.79 1/8 at 120 mph
glide with 1.80 gear
@3170 lbs.