I am the original owner of a stock 05 Tahoe LS with 4wd. It is an AZ and GA SUV- no rust, never off road or tow. Brakes and tires and scheduled fluid changes have been all that's needed. 125,000 miles. My local shop will do a 2" level, Bilsteins all around, 285/70/17 Nitto Grapllers, on...