The alignment of axles is the critical ingredient for tire wear (after overloading/under inflation). Even 1/16th of an inch difference between the distance form one axle to the other (measured on the spindle center drill holes) loaded and unloaded checked separately and carefully, will create tire wear. Worn bushings in the non-flexing spring eye, or a sagging spring will allow the axles to deviate from parallel. Deviation causes the pair of axles to steer the trailer (left or right) and put strain on the hitch that is translated into tire wear. Un-balanced loads (left to right) will also do this by stretching springs on one side more than the other making the axles not parallel. I built Michigan trains in the 1970s and welded many an axle mount to 1-1/2 inch thick bottom flanges to trailers designed to carry 125,000 pounds. It matters. Jim
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Today's Featured Article - Tractor Profile: Silver King - by Staff. Silver King tractors were produced by the Fate-Root-Heath Company of Plymouth, Ohio. The company was founded by John Fate in 1884 and was originally called the "J.D. Fate Company". After several mergers over the years, the final company name of Fate-Root-Heath came about in 1919. The first tractor produced was actually called the "Plymouth" tractor and was powered by a 20 HP 4-cylinder engine with a 3x4" bore and stroke. The four speed transmission had a top speed of 25 mph! After more t
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