McVeigh Truck Springs in Michigan, has NEW '59-'60 Tbird (and others) rear leaf springs. They have bushings and other parts also. They are made in the USofA. Here is their main website: https://mcveighstrucksprings.com/. His e-mail is: mcveighstrucksprings@yahoo.com For our SB members, his prices are more attractive if you deal directly with his business. His number is, (989) 826-3682. I encourage you to call. His 6-leaf springs provide an excellent ride. I wouldn't say so if I didn't actually wear them on my cars. (Most company's replacement springs are 5-leaf.) - Dave