I don't know what my car's current specs are. The only "suspension work" I've done is replace the tension rod bushings w the 3-piece ES bushings. I asked bc the guy told me our cars will only benefit from a 4 wheel alignment, due to the design. He said ONLY doing a front wheel might make things worse. My rear tires wear out before my fronts, and I don't "lay patches" so I'm guessing my suspension is old, sagging and causing additional tire wear.