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Archive for September 24th, 2006
Mixing tire brands on a tractor or trailer
Posted by j.p. on September 24, 2006
Our company helps maintain tires on commercial trucks — both steer and drive tires. On trailers, is it OK to put two different brands on an axle as long as the tread patterns match (i.e. a lug tire with a lug tire)? A driver in one of the fleets we maintain, will not drive a truck unless every tire is the same brand.
The first priorty is to make sure that tires mounted as duals have diameters within 1/4 inch. When diameters are greater than 1/4 inch, the larger of the two tires begins to take on too much of the load creating a series of concerns. Matching of the tread pattern (lug to lug, rib to rib) around a vehicle is desireable but not critical (especially on a trailer). Finally, matching the tire brands is good since the physical properties of the tires would be consistant but, again, this is not critical. If you look at the tires on most fleets, there is a mix and match of tire brands around the vehicles, especially the trailers.