I'm doing my first Ford I-beam set-up. Is there an "inside & outside/front & backside?" I thought there might be some caster in the axle, but it looks like the axle has a straight center-line through all attachment points, therefore allowing it to go on the spring either way. Is this correct, or am I missing something?

The axle is a 4" dropped, 30's Ford.

Thanks,
Marty