So I've got the 8" chunk out of the car, along w/the rest of the rear. It looks like the inside of the chunk hasn't seen daylight since 1968. the ring & pinion are in great shape. Still has the yellow paint on the teeth where they checked tooth contact. Anyways, the pinion won't budge no matter how hard I try (yes, all the bolts are out) and the ring gear won't budge either (yes all bolts off of it too). I've tried my rubber blow hammer to no avail. Any advice??????