bkat11208

I've got a few questions: 1) The website shows both steer and drive types for 22.5 wheels. We have a Sportscoach/XCR Freightliner chassis. Would we need 2 sets (aka 4 balancers) for the drive wheels In addition to a set for the front)? 2) Do they work; i.e do you notice less heat and/or wear? Do you notice a 'better' ride? If your tires are already balanced (with stick or crimp on weights) are these to be remove prior to install? Thanks in advance.