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cv axle nut 02 gmc 4x4 sierra 1500
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Downtime89
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Mar 17, 2015, 5:46 PM
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cv axle nut 02 gmc 4x4 sierra 1500
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Hey guys so i have done plenty of wheel bearings in the past, always rent my torque wrench from autozone, well today i did both the front wheel bearing/hub assembly on my 02 gmc sierra 1500 4x4. I did the driver side, went to torque down the axle nut and found out that the torque wrench was not working properly after putting a fair bit of preassure behind it, i set it down to the lowest setting and it still wouldnt click to show it was at its torque. so i went back to autozone swapped it out for another wrench and did the other side. Now im pretty sure the cv axle nut on the driver side is over torqued, i drove the vehicle 20 miles afterwards to get home as i had to do the work at a friends house "flat yard lol" so should i losen the driver side nut and re torque or leave it as it is? Just not sure if i losen and re tighten to the specs needed will it leave something lose...the vehicle is supposed to be torqued to 155 ...and when i say leave something lose i mean would over torque have compressed something and if i losen will it have play in that area?
(This post was edited by Downtime89 on Mar 17, 2015, 5:56 PM)
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Discretesignals
Ultimate Carjunky
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Mar 17, 2015, 5:55 PM
Post #2 of 10
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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I would definitely re-torque it to the proper specs.
I'd be leery of rent a torque wrenches. There is no way to tell if someone dropped it or if it has ever been calibrated.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Mar 17, 2015, 5:57 PM)
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Downtime89
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Mar 17, 2015, 5:59 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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ok thats what i needed to know, just makeing sure over torque didnt cause something to compress or something and then be lose when re tightend
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Downtime89
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Mar 17, 2015, 6:05 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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yea i know, i normally check them some what when i rent them, i turn it down to a low spec see if it clicks then work its way up to a higher number, but today i dont know what i was thinking....the first time i get one that doesnt click i just tighten it hard lol....yea the one time ya dont check something.....lol
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Discretesignals
Ultimate Carjunky
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Mar 17, 2015, 6:13 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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Some hubs you have to be careful because how much the nut is tightened can affect the bearing preload. I don't think it is critical on that one, but too loose and you may get play in the axle splines.
I'd use a 1 ft stick with a 155 lbs sack of potatoes tied to the end to tighten the nut before touching it with a rent a wrench...LOL
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Mar 17, 2015, 6:14 PM)
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Downtime89
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Mar 17, 2015, 6:18 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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I told the wife i need to buy one after this. So it should be fine but to be safe re torque. You know of a good basic wrench for a guy on a budget? Spent most of the cash on repair parts for this truck and a tahoe.....starting not to like chevy, love the engine hate the bearings and tranny....
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Discretesignals
Ultimate Carjunky
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Mar 17, 2015, 6:24 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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I'm not really up on which wrench is better. Maybe another person on here can comment on that. I got an old MAC wrench that seems ok. I had it calibrated a year ago. You might be able to find a good used one on ebay or craigslist and then send it out to be calibrated. Then you know you have a good one to play around with.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Mar 17, 2015, 6:25 PM)
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Tom Greenleaf
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Mar 17, 2015, 10:45 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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WOW - Scary topic! Downtime89: I think with the situation I'd leave it alone and check how that wheel spins a couple times.
Can you even come up with a wild guess as to how over torqued it might be? I think the damage if any is done now and nothing short of a whole new hub and axle too would put this to rest and still wonder how perfect (not) metal is of anything tools, parts and any resistance of threads on the axle ALL places for a failure of being correct.
The actual best point and suggestion was just made by Discretesignals (DS) to hang a sack of potatoes on a one foot stick type thing and still don't know if the axle has been rebuilt from one that was messed up before or the metal new was really perfect!
About now I just have to guess what the likely failure would be if you did this on purpose to force one to fail for a test and come up with torque specs based on testing when designed and new to come up with a spec to begin with. Yikes - I doubt the whole game!
Real scary is Chinese "cloned" bearings to me. Now the few things I still do ever increasingly see junk from or at least boxed by the best known brand names ever to find junk (substandard) to me in the quality named box!
About now I still say leave it alone or if scared enough replace everything but can only guess the weak spot would be the inner race of the bearing and it would distort and fail early giving warning hopefully with the textbook growl of a bad bearing in time to replace again.
BTW - Why did you do both? No joking here this can be about wheels falling off! I don't know of a life expectancy for these parts unless known both were subject to something known to harm them both the one that was older and fine will probably outlast the newer one still as it's proven itself - the new one hasn't.
At some point you just have to hope things were designed to tolerate or require that much precision,
Scary as said,
T
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Downtime89
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Mar 27, 2015, 7:16 PM
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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So far so good, i backed it off and re tightend dont think it was overly done to much actually. And i did both front as both front bearings were going bad, driver side had a good bit of wobble passenger was starting. Dont know what it is about bearings lately i have replaced these 2, 2 on the front of a tahoe, 1 on the front of a explorer and 2 on the back of a different explorer....gota be something with my driving style....all those bearings were in the past year.
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Tom Greenleaf
Ultimate Carjunky
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Mar 27, 2015, 7:51 PM
Post #10 of 10
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Re: cv axle nut 02 gmc 4x4 sierra 1500
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Beaings that fail more than once? I seriously doubt the metals and machine work when made is as good as it should be. One pepper flake of a gauling(sp? like a pitting) of a bearing or race and can take some miles and a new one will self destruct without doing anything wrong.
If more than once take note of that brand and try another. Trouble is the makers keep changing too. Takes time but if a third of something fails you question yourself or a whole line?
T
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