makes senses why folks say spacers can make the ride worse.The local Les Schwab never could get my 35’s perfectly balanced, even after road force balancing with a newer high end Hunter balancing machine. I will admit these newer GM heavy duty truck frames are so rigid they transmit every vibration, and for some reason the crew cab short box frame is the least forgiving.
However, I purchased a set of Centramatic balancers that I simply slide over the lug nuts, then put the wheel on. Now my truck is smooth as glass at any speed on the highway no matter how bad Les Schwab screws up my tire balancing. One of the best investments I have made regarding my Duramax build.