I’m running 37s on my 02 GMC Sierra 2500HD. I used to have a mild vibration around 55mph. I recently had new brake lines and calipers put on. Now I have a much worse vibration which starts about 50mph and goes to 60 mph. The shop had the truck for 6 days and took the tires off and on multiple times. Could they have knocked off a weight off a tire? If they out the tires back on different hubs would this do it? Any other thoughts. Gonna have them balance tomorrow.