I would say glue the rear tires but you have to glue them a couple of times. The only part on the sidewall you want to glue will be where the foam meets the rim. I use the losi glue but honestly any fast drying glue will work. I also glue the tire sidewall while the tires are on the car. What I do is if have the motor not be hooked up to the drivetrain and let it free wheel. I will rotate the drivetrain and apply the glue to the edge at an even ammout to all outsides of the tires. Do this a couple times and you should be OK. Another way to help this is when cutting the foam tire, while rounding the edges round the edges with more of a radius. This should help.