What are the main issues to look for in a 98-02 F-Body (or 04 GTO) LS1? I found a few good deals on 98-02 F-Bodies but was wondering if there were any big issues with 98-00 models that were fixed in 01-02.

I have test drove a 98 Z28 and an 02 Z28. The 98 was manual and the power steering pump was on it's way out. Everything seemed fine on the 02.