I'm not sure if I need to make adjustments with my rack, or if it's because I got the universal cut out and currently don't have my lightbar, but I have SO MUCH VIBRATION! Luckily I only drive on highway to get to lakes and once on the beach I'm not doing over 35 and the vibration is from 40-60 mph but it looks amazing and if I'm able to I'll update this when I try adjustments as well as getting my lightbar installed