1967 Mustwang and Cougar pedals actually are the same but the pedal support is different because of the collapsable steering column used on 1968 cars.
Pedals designed for power brakes are different than those for manual brakes. The pivot is located differently to give better leverage on non - power assisted cars.
Call Don Rush or Lin Thurston for used pedals of any type. Lin can be reached at 817-444-0457 or [email protected]. Lin has an all Cougar wrecking yard and parts business. He also specializes in restored trim parts and bumpers for 67-73 Cougars.