The shop that installed the rubber on my rims yesterday didn't balance them because they don't have equipment that will accept a tire this size. We're talking about rear tires on a GT5-S - 345-35-15's. I remember the shudder that resulted when a weight fell off my daily driver a few years ago. Is this something I should worry about? Or should I drive it and see if it shakes my teeth out first? The shop that installed the rubber on my rims yesterday didn't balance them because they don't have equipment that will accept a tire this size. We're talking about rear tires on a GT5-S - 345-35-15's.A I remember the shudder that resulted when a weight fell off my daily driver a few years ago. Is this something I should worry about? Or should I drive it and see if it shakes my teeth out first?