Yeah..it'll work fine. I've done it a bunch of times.

On that rear main. Do the rear engine cover gasket. I'm assuming that's one of the bolts that backed out. They are in with such low torque that I see that gasket seeping more commonly than the rear main itself. As long as the cover is off, obviously you do the rear main, but the cover gasket, I like to increase torque a ft lb or two and add some locktite to the bolts.