Yeah try there. I know they have a bunch of different axles at the one by me.
EDIT: actually, come to think of it, I'd try JTI Trailers first. 7400 oak leaf rd in Oakwood. That's their specialty; trailers. From Akron, take 8 north to 271n. Get off at broadway/Forbes, and take a left. At the first light, just across the bridge, take another left. Stay to the right, so you don't get back on the highway, and it will be on your right.
And if they don't have something that would work, tractor supply is 10 minutes away!