I was out cruising today and spotted a 77 that looked pretty good at a car dealer. I had to stop and look at it just to find the price. Well anyway I looked it over and it was in decent shape and ran pretty good for 167,000 miles. I did notice that when you put it in gear (auto trans) the rear end dropped about 2" . By this I mean the body height dropped 2". I thought this was odd and quite excessive. Maybe its the rear spring that has lost it's guts, but It could be something else. Anyone have this happen to them ?