A body 11'' disk brakes

65-72 A body cars with the 4 inch bolt circle, Kelsey Hayes disc brakes, had a rotor diameter of 11" inches.
I would know, as i rebuild lots of these disc brake systems.

[FOR SALE] - **REBUILT** Kelsey Hayes Disc Brakes From The 65-72 A Body Line Of Cars.
Thanks, I found these being sold by Rick Rehrenberg from Mopar Action on ebay

OEM 10"Brake Rotorfor 1965-'72 Mopar A-body
Made by the original Chrysler suppler.
Front disc brake rotor for all 1965-1972 Chrysler A-body cars, incl.:
1965-'72 Dodge Dart, Demon, Sport, Swinger, GT, GTS1965-'69 Plymouth Barracuda, 'Cuda, Formula S1965-'72 Plymouth Valiant, Duster, Scamp, V100, V200, Signet
CORRECT 4-inch bolt circle, (5 lug), for the above cars