2nd Gen Non-Engine/Transmission Dana 80 - how hot are your hubs?

[VicR]

Had a leaky pass side rear wheel seal that I just finished replacing. Drove the truck today to work and back (about 11 miles each way). The hub on the pass side definately gets 'warmer' then the drivers side. After 11 miles it was still cool enough to put my hand around it, but it was definately warmer then the drivers side. I wouldn't call it 'hot', but very warm though.



It had more play in the hub when I started so I know the bearings are a little tighter now then they were. Or possibly I got the brakes a little too tight on that side? Or...



After an around town run, how hot are your hubs?



By the way, its a Dana 80 w/ LSD.



-Vic

 

[Missouri Mule]

Brakes not equally adjusted, you could try and adjust them evenly.

If bearing it should make noise.

 

[steved]

It all depends on the ambient temps... I have the remains of a D60 for a trailer axle... the hubs get really hot when it is over 100* out, but run just a touch over lukewarm when it is 70* out... one runs hotter than the other, but remember how hot is hot... 140* is very uncomfortable to touch... most grease is good to 200* and gear oil is good to around 400* (synthetics, IIRC)...



steved

 

[VicR]

Ambient was about 90. I would say the hub was much less then 140. I had my hand around it and it wasn't that bad. Might be my excuse to buy that IR thermometer at Harbor Freight I've been looking at though.



Just to see what would happen I shut the truck off and coasted downhill about 1/2 mile at 20 mph or so and didn't hear any strange bearing noises (but stopping w/o power brakes was more of a challange)



I'll probably loosen the brakes a few clicks and see if that evens them out.



Thanks for the posts,



-Vic

 

[WDixon27]

the $40 (on sale) one with the lazer works pretty good

Might be my excuse to buy that IR thermometer at Harbor Freight I've been looking at though.



-Vic

 

[NoSeeUm]

Ambient was about 90. I would say the hub was much less then 140. I had my hand around it and it wasn't that bad. Might be my excuse to buy that IR thermometer at Harbor Freight I've been looking at though.



Just to see what would happen I shut the truck off and coasted downhill about 1/2 mile at 20 mph or so and didn't hear any strange bearing noises (but stopping w/o power brakes was more of a challange)



I'll probably loosen the brakes a few clicks and see if that evens them out.



Thanks for the posts,



-Vic

LOL



I see that I am not alone in finding excuses to buy tools.



"Hey, Lover it is just part of the expense of doing the job, and look at all the money I saved doing it myself. That alone more than pays for the new tool I needed, and I get to keep the tool. "



Jim