I'm at 55k miles as well.
Engine wise, zero issues.
MT82 Transmission, replaced at ~23k miles.
Hood Corrosion issue, Hood stripped, reprepped and repainted at 54k miles.
3.73 Differential whine....had it "addressed" at 54k miles. They put one set in, didn't like it, put another set in and sent it back to me. Loud as F&$* so I took it back. The 4th set of gears is likely going in as we speak.