Locking nut for attaching the door window regulator to the window channel bracket on any 1969-70 Mercury Cougar or Ford Mustang. While we do not sell the T-bolts for attaching to the regulator (T-bolt Ford Part # C8SZ-6523274-A), we do have a retainer to keep it in the front channel bracket. Find it here.
This is not an exact replica of the t-bolt lock nut, but is a functional replacement part.
Replaced Ford part #: 34975-S