Issue link: http://read.dmtmag.com/i/34501
TIRE MIXING IMPROPER TIRE MIXING CAN BE DANGEROUS Four Wheel Trucks: For the best performance it is recommended that the same size, design, and construction of tire be used on all four wheel positions. If only two MICHELIN® radials are mounted with two non-radials, the radials should be mounted on the rear. If tires of different design are mixed on a vehicle in any configuration, they should not be used for long periods, and speeds* should be kept to a minimum Mixing or matching of tires on 4-wheel drive vehicles may require special precautions. Always check vehicle manufacturer’s Owners Manual for their recommendations. Trucks with more than four wheel positions: For best performance, it is recommended that radial and non-radial tires should not be mixed in dual fitment. It is unlawful and dangerous to mix radials and bias tires on the same axle. *Exceeding the safe, legal speed limit is neither recommended nor endorsed. RUNOUT The ideal time to verify that proper mounting procedures have resulted in concentric bead seating is during the installation of new steering tire/wheel assemblies. The ‘on vehicle’ assembly radial and lateral runout measurements should be the lowest possible to offer the driver the smoothest ride. Both the guide rib variance and the hub to wheel clearance on hub piloted assemblies can be measured following the procedures found in the Runout and Vibration Diagnosis guidelines on Pages 134-135 of Section Nine, Appendix. 34 Section Two: Mounting the Tire