Stripped all the teeth on a ring or pinion? Color me skeptical; if it's rear end related, more likely it's differential pinion gears.
Me too. Could be a stripped spline in the yoke or maybe an axle spline gave up.
Too bad you didn't have someone look under the car before you pulled the trans. If you loaded it against the brakes and the drive shaft turned but the wheels didn't, you might have saved some labor.
