One of the things I love about US model railroading is that trucks are interchangeable between cars from different manufacturers. With a multitude of trucks available on the market, it’s helpful to have a cheat sheet that indicates what axle lengths work with them. I found such lists on the Reboxx website that help me determine which PROTO:87 wheel sets I need to order from NWSL or Andy Reichert’s PROTO:87 Stores.
Find Axle Lengths by Wheel Diameter
Maybe, you’ll find them useful as well.