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Old February 3rd, 2011, 11:29 PM   #1
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Default S10 wheel bearings...WTF???

I am going to be replacing the 6th wheel bearing on the wifes Bravada this weekend because of ABS Sensor. First wheel bearing that went bad the bearing was actually bad and I replaced it with a Timkin, then we got an ABS light on the other side (Bad Sensor) so I replaced that with Autozone 1yr warranty.

Now fast forward to the present time...I cannot go 6 months without getting a ABS Light and it is always a sensor, I have replaced both the Timkin and the Autozone one about 3 times each.

I torque the axle nut to spec each time 150ft lbs, these are sealed units and should not get crap in them to cause them to go bad. I know there is a TSB On fullsize GM's getting crud in there and I have tried taking the sensor out before and cleaning it then putting it back in the hub assembly with no luck.

What the F*CK is going on with these sensors? Before anyone says just drive without ABS Bravada's need them to differentiate the difference between rear and front wheel speed for the AWD system, no abs you have 2wd.
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Old February 3rd, 2011, 11:41 PM   #2
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the s10 platform is garbage. i dont understand why so many people like them. Amongst many other things i replaced a ton of wheelbearings on my s10. just a shitty design
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Old February 3rd, 2011, 11:57 PM   #3
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Quote:
Originally Posted by adamzr2 View Post
the s10 platform is garbage. i dont understand why so many people like them. Amongst many other things i replaced a ton of wheelbearings on my s10. just a shitty design
145,000 miles on it now and I have not had to really do anything to it, they are reliable! I had owned many S10 Blazers in the past and never had any problems with them except the T case vacuum switch or Actuator that is an easy fix with a posi-lok kit. All the other S10's I have owned never had ABS or Wheel bearing problems, so why does this Bravada, they are the same dam wheel bearing and sensor!
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Old February 4th, 2011, 02:12 AM   #4
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you are torquing them too much.....i torque the axle nut to 103ft lbs.

I just did BOTH wheel bearings on my Zr2 and no noises in 20k

also.....DO NOT USE autozone bearings......they go out in 2 months or 3000 miles
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Old February 4th, 2011, 04:45 AM   #5
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I have seen TSB's on the guys who use the cheap bearings. they say to not use any impacts on them. only hand tools and to torque the shaft on the ground after the tires on
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Old February 4th, 2011, 08:09 AM   #6
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i have shitty AZ bearings on my 99 blazer and my 95 s-10. never have had a problem. u must be getting a bad set or something.
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Old February 4th, 2011, 08:53 AM   #7
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I agree with not using an impact,although ive replaced at least a dozen and never ran into that problem.what year is your bravada?mine were s10s all older then 97. Also agree that the zone bearings suck.could it be the wireing losing contact?can you feel slop if you wiggle the tire top and botom?ive had bearing so bad you cant talk over the noise and not set off abs lite.
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Old February 4th, 2011, 09:33 AM   #8
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I would suggest you go to BCA/National bearing assemblies.
We have used hundreds of them with no sensor issues.
I know they are more expensive.
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Old February 4th, 2011, 12:07 PM   #9
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Like I said I have an Autozone duralast on one side but the other side is a Timkin and neither last more than 6 months.

103ft pounds...yep I think that is my problem, I forgot where I seen 150ft pounds you are dead right only 103 according to this site http://www.speedwayautoparts.com/Torque%20Specks.pdf

Also I never use an impact putting them on, just a breaker bar until tight then a TQ wrench.

I am almost positive over tightening is my issue, will replace this one and TQ to 103 and see what happens 6 months from now.

Lucky all these have been under warranty

Thanks for the help guys...this was driving me nuts!!!
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