Keeping your wheels pointed in the right direction is crucial not only when trying to avoid hitting yet another curb but also in the wear and tear of your treads. The toe and camber adjustments are something you should look into with every tune-up of your caddie. If one or the other is out of alignment, your carcasses will indicate that thru disappearing tread. Items like the Yamaha Spindle Tube Spacer for G22 and G29 models, when they wear out, can pull both out of wack. This item houses the golf cart spindle pin bolt. This is very similar to a kingpin but has a slightly different function. The most common sign that you have a problem in this area is your assemblies will look like they are leaning in towards one another.This Yamaha spacer is installed internally within the spindle. This is absolutely something you can handle, but you will be jacking the cart up, so having someone there to make sure you don't drop a coach on your hand might be a good idea. If you have any questions, give Buggies Unlimited a call.