Maintenance & Repairs How to Grease RV Wet Bolts (And Check Your Undercarriage) Published on Jul 15, 2026 Updated on Jul 15, 2026 Wet bolts are the greaseable pivot bolts in your trailer suspension, and most owners have never touched them. Here's the full undercarriage routine we run on our fifth wheel, done the way Lippert and Dexter say to do it. Read more