I'm not exactly sure how the bulb numbering works ... both 7440 and 3156 are also called T20 bulbs (what I have), but 3156s and 7440s are, to my knowledge, not interchangeable.![]()

It's waaay too late to be messing with my brain like that. I'm pretty sure that didn't make any sense, though.
I may have to just order some and see if they fit.
I wonder if they would survive DRL usage any better than LED's?