Trak-Loc casters....where to buy?

Aren't you just trying to replace the bent casters? Or do you need the aluminum mounting plates as well?

Personally, I'd just get the casters from Mesa, as you know they'd fit and save a hassle for $44.

If you want to search out something similar, you could perhaps try grainger. They may have something with the same plate size and thickness that would work. But you might find you're not going to save much...

http://www.grainger.com/Grainger/casters-and-wheels/material-handling/ecatalog/N-cnm?xi=xi

(See the plate casters section.)
 
Pertinent to my interests. I have an Egnater Tourmaster cab that uses the same castors, but can I find any here in the UK that are cheap? Can I fuck!