Hi AKrause, welcome. I think you would have some luck at Napa auto parts or if you have a big truck shop near, you could drop in just for advice. I would think Cleveland/Akron area would be a good trucking center.

1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy