Mike,
There's an article 'Grin and Bearing it' written by Mike Drew in the July PCNC newsletter (page 8) that can be found here...
http://www.panteraclubnorcal.c...rticles/News0907.pdf
It discusses the use of a wider bearing for longer service life and and has part #'s for the wider and stock bearings.
I'm sure there are other documents on the actual replacement process, getting the high axle nut torque is the trick in all this.
Good luck,
Julian
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