Park
Walt's Garage Hudson Tech Book Volume 1, pg. 21 suggests "Go to your local auto parts store and buy two lower front shock bushing kits. Four bushings are in one kit. These kits fit AMC's from '72 to 88 and Ford Mustangs from '72 to '80.... Install one in front and one on the back side of the radiator. Be sure that the small shoulders face each other. Install a 5/16 inch bolt with a 5/16 inch washer, one inch in diameter, on the bolt side and tighten the bolts just enough to slightly squeeze the bushings. Now your radiator can vibrate and the tank straps will not break loose." Walt says he uses these on his 53 Hornet.
Lee O'Dell

PS I wish I had seen this tech article before I went to the trouble of cutting sway bar link bushings to fit.

Thanks Lee . . . I'll consider that if I don't find some of the original types to install on the little brackets.