Got done with my transmission swap and whwn I was refilling it I overfilled it by atleast half a quart. How serious issue is this? I guess the only way to get some out is jack the front up and remove the rear drive shaft.

 

Pull one of the tranny coolant line at the radiator. Use one of the empty quart to catch the fluid when you turn the truck on.

 

6- or 7-dollar cheap transfer pump and suck it out. harbor freight, walmart...