I used them only on passenger cars, with no problems. The modified bearing assembly moves the load-carrying surface inboard the length of the bearing rollers, putting the load onto an unworn part of the axle shaft. Other than increasing the leverage of the axle flange in relation to the weight-bearing part of the axle, nothing changes. Since most of my truck-owner customers were using their 1/2-ton rigs in a somewhat overloaded condition, when an axle got a bearing wear groove we just replaced it with a new one. I tinkered with the idea of setting axles up in a big lathe and reducing the diameter of the bearing area about 1/8", then pressing a sleeve over the area and regrinding to original diameter, but I never got set up to do it. With CNC equipment and a good supply of core axles, I still think it would be a commercial success. Of course, the days of lots of vehicles with rear drive axles is kind or long gone now!
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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