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VERY strange! when i got mad and replaced the whole hub i used the same outer seal i had been using. ??? i have not had time yet to check my theory of the race being the problem on mine. i will however check my stock of seals for you and let you know what i find.

Diff oil level is fine. the oil does not get to the hubs unless the outer seal goes south. i know this is weird but thats how they are designed. when time permits i will find a oil seal that will work and switch. also need to look into the diff level plug for this modification as it looks like...

you may also want to invest in a back belt. :!: after doing all the hubs on the M819 and 2 on the M131A4 my back was not likeing me for a day or so. don't know what they weigh but defiantly HEAVY!

well i changed the entire hub and bearings. we will see how it works when i get a chance to take her for a cruse. may take it to work on tue. 38 mile one way. should be far enough to tell. i'm wondering if the new race was cut out of round in relationship to it self? no weird wear on race or...

what did you ever find was the problem with your hub? mine is still giving me fits. pulled and repacked and made certain the race was seated and still ran hot. changed the outer bearing again and no change. in the morning im changing the whole hub. dont know what is going on but when we drove...

i dont know much about the 2 1/2 ton trucks but the 5 ton rears have an outer seal that keeps the gear lube from entering the wheel bearing. original had cork wedge and i used silicone.

Not trying to hijack here but i have the same issue with the only set of wheel bearings that needed replacing on the M819. ran hot! just the outer. 212 degrees! in just 35 miles. backed the nut off 1/4 turn then locked it down and the temp dropped 40 degrees but its still hotter than the...

be sure to check the inner bearing races. these are often overlooked. just clean and dry the bearing real good and hold it just rite to the light and you can see right inside. also check to make sure the outer race is seated completly.