Hub Nut - The 1947 - Present Chevrolet & GMC Truck Message Board Network

pat66 · 09-27-2009, 03:43 PM

I have a 02 blazer 4 WD.All factory stock.Changed front wheel hub/bearing assembly yesterday.Manual says torque driveaxle/hub nut to 103 ft-lbs.It has a lock nut . I get the feeling thats not right. Any help would help me sleep better

*2tons of fun* · 09-27-2009, 04:06 PM

wha tdo you not think is right about it?

its a big nut and the torque will have zero effect on it becuast it is a unit bearing. its more to keep the shaft from falling out and the bearing would subsequently fail with out the shaft in place. you could torque it to 200 if you want.

motorz350 · 10-26-2009, 04:00 AM

do not over torqe it if you do it will bind the bearing up and will fail do as the specs say. i have a 91 s-10 blazer 4x4 with a 350 in it and hade to replace the wheel bearing on it and i over torqed it and drove it two weeks and it went out . thay make manual to prvent people for making more problems for them selfs and so they dont fork out more money then they have to

*2tons of fun* · 10-27-2009, 01:35 AM

how is that possible?

the stub shaft buts up to the inner drive hub. you must have damaged the bearing on install.

motorz350 · 10-28-2009, 05:47 AM

no it can happen. the bearing is pressed in to the back of the hub housing and the front of the hub with the wheel studes is pressed in to the center of the bearing leaven a 3/16 gap. so when you over torq it. it pulles the shaft up to the back of the hub will close the gap and smash the bearings. and will make it ware faster then it should. iv had 6 of thes s-10s and iv leaned you dont mess a round you do as the specs say. its just like the bearings on the front 72 two wheel drive truck you put them in and torq them to spec if you over torq them thay tend to ware to fast so the 80 or so bucks you spent just went down the dran

rennat_2006 · 10-31-2009, 03:02 AM

103 ftlbs is the correct torque

09-27-2009, 03:43 PM	#1
pat66 Registered User Join Date: Apr 2007 Location: antioch tn Posts: 71	Hub Nut I have a 02 blazer 4 WD.All factory stock.Changed front wheel hub/bearing assembly yesterday.Manual says torque driveaxle/hub nut to 103 ft-lbs.It has a lock nut . I get the feeling thats not right. Any help would help me sleep better __________________ 02 Blazer 66 lwb step 66 lwb feet :flagw Working to live not living to work RIP RS

09-27-2009, 04:06 PM	#2
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Hub Nut wha tdo you not think is right about it? its a big nut and the torque will have zero effect on it becuast it is a unit bearing. its more to keep the shaft from falling out and the bearing would subsequently fail with out the shaft in place. you could torque it to 200 if you want.

10-26-2009, 04:00 AM	#3
motorz350 Registered User Join Date: Oct 2009 Location: warrenton , Oregon Posts: 15	Re: Hub Nut do not over torqe it if you do it will bind the bearing up and will fail do as the specs say. i have a 91 s-10 blazer 4x4 with a 350 in it and hade to replace the wheel bearing on it and i over torqed it and drove it two weeks and it went out . thay make manual to prvent people for making more problems for them selfs and so they dont fork out more money then they have to

10-27-2009, 01:35 AM	#4
2tons of fun Account Suspended Join Date: Jan 2009 Location: galt ca, Posts: 749	Re: Hub Nut how is that possible? the stub shaft buts up to the inner drive hub. you must have damaged the bearing on install.

10-28-2009, 05:47 AM	#5
motorz350 Registered User Join Date: Oct 2009 Location: warrenton , Oregon Posts: 15	Re: Hub Nut no it can happen. the bearing is pressed in to the back of the hub housing and the front of the hub with the wheel studes is pressed in to the center of the bearing leaven a 3/16 gap. so when you over torq it. it pulles the shaft up to the back of the hub will close the gap and smash the bearings. and will make it ware faster then it should. iv had 6 of thes s-10s and iv leaned you dont mess a round you do as the specs say. its just like the bearings on the front 72 two wheel drive truck you put them in and torq them to spec if you over torq them thay tend to ware to fast so the 80 or so bucks you spent just went down the dran __________________ my dads web site www.batauto.com 72 gmc fleetside long box 2wd for now going on 4x4 fram soon with tpi 350 91 s-10 blazer 4x4 with tbi 350 94 s-10 blazer all time 4x4 4.3 vortec 1960 3/4 factery 4x4 longbox Last edited by motorz350; 10-30-2009 at 06:12 AM. Reason: bad gramer

10-31-2009, 03:02 AM	#6
rennat_2006 Registered User Join Date: Jun 2009 Location: Pasco, wa Posts: 111	Re: Hub Nut 103 ftlbs is the correct torque __________________ 1972 C10 cheyenne super -350/th350 Wifes truck 1971 Nova- 6.0l with some goodies and a t56, 98-02 camaro brakes all around, tubular control arms, etc 2000 zr2 blazer- rock crawler offroad toy, one ton axles and lockers front and rear. 2006 2500hd- 500hp duramax/built allison trans,traction bars, and some other goodies.



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