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Re: 4x4 Auto hubs
[Re: Lawn Monkey]
#1506704
09/24/13 12:35 AM
09/24/13 12:35 AM
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Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
71yelladustr
super stock
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super stock
Joined: Dec 2010
Posts: 1,035
Missouri U.S.A.
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They do not have any hubs actually. The wheel hub assembly is splined and the axle slides through it and is secured by a large nut. Meaning they work well and are trouble free. The only downfall is the axles turn all of the time regardless if it is in 4x4 or not. The outer axle u-joints fail more often because of this. As for fuel mileage, im sure it hurts somewhat but isnt enough to warrant putting a $3K kit to help out IMHO.
392 gen III hemi on E-85 727 trans Dana 60
10.02@134
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Re: 4x4 Auto hubs
[Re: 340SHORTY]
#1506706
09/24/13 07:02 PM
09/24/13 07:02 PM
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Joined: Jan 2003
Posts: 18,423
UPPER MICHIGAN, MARQUETTE COUN...
NITROUSN
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,423
UPPER MICHIGAN, MARQUETTE COUN...
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Quote:
The downfall is the uni bearing style of hubs.  Yukon has conversion kits starting around $1,750.. 
That is debate able.
So now you are out 1,750 to 2 grand plus labor. With the conversion kit you have maintenance. Pack bearings, replace seals and any other parts that could fail. You might get better mileage. You now have to get out of the truck and lock and un-lock them. You also have the possibility of locking hub failure which means no four wheel drive.
The unitized bearings have no maintenance. You could replace 10 to 20 bearings for the 1,750.00. No hubs to lock or unlock. Four wheel drive most likely will continue to work. You might lose a little fuel mileage.
To me its a no brainer. Leave it alone. My last truck had one unitized replacement in 150,000 miles.
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