OK, so I want to resurrect this thread, b/c I ordered the cheaper version of the OP's bulbs:
And they did NOT fit in the factory reverse-bulb socket; with or w/o the prongs still attached. They ARE the same bulbs, just w/o the blue tint, correct!?
OP...were they a direct drop-in; even with those prongs still attached??
I'm about to drop $13 for some Sylvania 886's and try that mod, but thought I'd post here before I waste any more time/money.