Looks good to me, but I have the stuff below on hand. My only worry is that it might not stand up to the abuse that an axle gets. Anyone have experience with it?
Eastwood Diamond Clear Metal Aerosol 12 oz
Protect metal
parts with a crystal clear, tough, flexible coating that keeps brass, aluminum, steel, die-cast, even cast iron looking great. This self-leveling formulation, resists chips, cracks, fading and yellowing. May slightly dull reflectivity. Resists fuels and temps up to 300ºF. Ideal in underhood applications except exhaust manifolds. Great for polished wheels, aluminum valve covers as well as items around the shop and home. Diamond Clear for Bare Metal is a solvent-based clear in a 12 oz aerosol can.