If you want your plane to track straight, simply put an alignment rod (two brass tubes with a steel rod inserted for extended reach) in place of the axles. Poof! You now have perfect alignment of your main landing gear’s axles. All you have to do is lock the landing gear into place (or the lower axle support hubs) and install your axles and wheels. Tracking alignment is important for taming your airplane’s ground handling—especially during takeoff runs and landings. You’ll have far fewer ground loops if your axles are aligned with each other.