I have the length for both of those, but not for Vintage Air systems. For Old Air it was 44" and 34" the short one going between alternator and compressor. I used Mitsuboshi belts...not Mitsubishi but a fine old company who specializes in fan belts. You can find them at hardware stores like ACE and I've had excellent luck with them.

Last edited by Jon G; 07/21/2023 5:42 PM.

~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end