[MD83driver]

From what I have seen here, there appear to be two versions of jack adapter locations. One on the aft spar web and the other just after the spare cap about one rivet hole spacing back, as in the original photo that started this thread. I have a '78 H model and my jack point is just behind the front spar. There are words either in the POH or maintenance manual on what jack adapter to use on my plane. I memory serves me correctly, Cessna gives either a description of how to make the jack adapters. Should be 4"X4" pads with rubber/silicone type barrier between it and the wing, that will spread out the load properly. I have attached an image of mine. As one can see from the picture, my mount hole is just behind the double row of rivets on the lower spar cap, it came from Cessna that way.