Anyone know if the front wheel bearing dust cap for a 90-05 part # B455-26-071 has an after market or other readily available option? I can't find any auto parts store that can get them quickly so I'm hoping one from a trailer or another car or ? would work.

don't know the answer to your specific question but you may be able to get one here: Mazda Nissan Heaven Salvage Yard

Ford Probe rear bearing the same?

Yeah I was trying to figure out a way to search by size because I bet something like the probe is the same. I have a set coming and just hammered out the bad one for now. It was just a car show / cruise so no heat or pressure on it anyway. I mainly want to get them on by Friday to go beat up Mustangs all weekend.