Could be a suspension issue, sounds correct. A lot of people on here tear out their XREAS systems because they eventually leak, etc. If you want to do pretty much any lift except for spacers, you need to take it out. Luckily, my 2003 SR5 came without the XREAS, and I just have the regular shocks, which I swapped out for Bilsteins. I love them, a firm ride and great offroad too. The XREAS system just gets all worn out after time, as most parts do. I'd personally swap for either Bilsteins or OME (Old Man Emus). You'll love the ride and their performance on and off road. I do have some Monroes which are a great replacement with similar characteristics to the stock parts. I have rears if interested.