I'm working on a 68 coupe that has some accident damage. I'm trying to establish how the body level front to back should be in reference to the frame rail baseline before I start building a jig to put everything back in its correct location. If I level based on the assumption that the rocker panels should be parallel to the baseline, the frame measurements are waaay off. If I level according to the frame dimensions (I can only get them to within +/- 1/4"), the rocker panel is 1/2" higher in the front than the rear (measured from the front to rear of the door). Anyone happen to notice the same? I'm leaning towards leveling with the frame as close as I can get it, but was hoping someone more knowledgeable than I could tell me if that's the right way to go. It seems odd to me that the rockers wouldn't be parallel, but I honestly don't know. I suppose that suspension loading differences would bring the overall body back to level, but was hoping someone out there might be able to shed some light on my conundrum.
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