As Dave says, rear whhel arch is different on HJ on sedan and wagon plus WB Statesman. The whole back end is different from the hip line down and they are wider across the beaver. Stick your head under the bottom of the rear quarter of a HQ sedan and then on HJ. HJ-HZ is flat, HQ is sharp. The extra width is why post HQ rear bars don't fit utes or vans very well but HQ wagon does.