Yes, more than once as I have scraped them a few times. BTW, the bed liner coating is the spray on version on the body and rockers. It holds up well with proper sanding and prep solvent. The bumpers were painted with Krylon plastic coat paint along with the front grill. I added Rancho 9000 shocks, upgraded the sway bar links, replaced the sway bar bushings front and back. It is running Nexen RA8 31x10.5 load range “C” tires. I replaced the half shafts 3 yrs. ago. I bought this Xterra with 140,000 miles on the odometer. Have added another 40,000 since. Great rig on and off-road. MTG