From your description, I can't tell if your problem is the front or the rear suspension. However:if you're talking about setting up aftermarket coil-over shocks, my experience has been that they will be all over the map out of the box. Trying to get them adjusted for a consistent ride height and equal wheel-weighting is an all-day job to do correctly, and there is no reason to expect equal spring-seat positions side-to-side, or front-to-back. Do you mean there's 1.5" variation in- and-out, or side-to-side, or front-to-back?
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