I swapped the Ranchos for Bilstein 5100s a few thousand miles ago. I just got back from a 1400 mile trip to TN with my wife, and had a rattle while we were gone. I couldn't see anything obvious at a quick glance, but a check underneath this morning shows that the driver side upper rear shock bolt has backed itself out, and the shock is resting on the spare tire.
Does anyone have the size for the bolt handy? I found a part number on gmpartsnow, but it is discontinued. My Google-fu is failing me, and I just need to pick up a replacement bolt.
Thanks!