3B, The measurements you post are correct for that brg, but is it a tapered barrel bearing with a ring for the seal to ride on ?
This is a hard brg to describe if you have not seen one.
Today we see the seal ride a ring which is part of spindle, take that ring and put it on the inner part of the brg. and when installed in the hug the seal rides it because it protrudes through the seal.
What bearing manufacture does BRGBR refer to ?
The inner brg. I ordered from Bates in St. Louis,Mo the rep said was A Hyatt bearing.

Rustednuts- The truck is a low mile, unmessed with, stock looking truck so I don't think the hubs where changed out but here's the numbers on the frt. hubs- 3681888.
Let me know what that refers to if you find it.

Dan


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