Who needs two sets of balls :confused: grin
Tapered rollers are nice but I do not think the cost parts and money, is really worth it. i have seen many tapered roller bearing that have failed after a short time.
PREVENTIVE maintenance is what keeps these trucks on the road and they are made to be serviced cool

There is enough good in the worst of us and enough bad in the best of us that it does not behoove any of us to criticize the rest of us.
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Be yourself. If you are ever lost, It will be much easier to find yourself if you know who you are!