Having trouble finding the wiper arm (the arm, not the wiper/blade) for the back

Thanks. "Another make and model" is an idea but not sure about how to check on that without other make/model at hand. Yes on Ebay, have checked. Looks like stevieray1 has clue to deeper check.

*Got to be able to find one on eBay, I think* just follow sr's instructions... You can take your wiper arm (unless it's missing) to a local salvage yard and do a walk about to compare to other makes.... IF you just can not find one... We have a Saturn SW @ the shop that's being parted out, I'll have to check it but I'll bet is still on there .. LONG way to ship from, here in VA... but I guess if all else fails.... That truly IS a 'must have' part on any SW, especially when it's raining! .. Let us know... Good luck!