Front axle nut torque spec
Thread Starter
Joined: Oct 2011
Posts: 163
Front axle nut torque spec
I've got an 02 Monte LS.
I replaced the front axle and in my manual. The torque spec is 118 ft/lbs. So that is what I torqued it to.
I've seen in some places here and other places list a 159 ft/lbs torque spec for the front axle nute.
Which one is correct? And if it needs to be at 159 ft/lbs, is it okay to just torque it down as is? Or would the nut need to be replaced? I've got around 100 miles on the new axle.
I replaced the front axle and in my manual. The torque spec is 118 ft/lbs. So that is what I torqued it to.
I've seen in some places here and other places list a 159 ft/lbs torque spec for the front axle nute.
Which one is correct? And if it needs to be at 159 ft/lbs, is it okay to just torque it down as is? Or would the nut need to be replaced? I've got around 100 miles on the new axle.
Last edited by jasonsmith; Feb 15, 2012 at 12:30 PM.
Monte Of The Month -- August 2014
Joined: Sep 2008
Posts: 25,145
From: Southeast PA
In the service manual of my 2000, it did specify 159ft/lbs.
Maybe it was changed? Maybe the TQ spec is different for an LS? (which I doubt).
If your book says 118, that is what I would do.
(I won't reply this again to your PM
)
Maybe it was changed? Maybe the TQ spec is different for an LS? (which I doubt).
If your book says 118, that is what I would do.
(I won't reply this again to your PM
)
Thread Starter
Joined: Oct 2011
Posts: 163
I ended up torquing it down to 159 ft/lbs.
Last edited by jasonsmith; Feb 15, 2012 at 06:21 PM.
Joined: Apr 2010
Posts: 12,601
From: Mentor, Ohio
I've used an impact gun and tightened the axle nut down to the point the impact gun stops going. Has not been an issue on any car I've worked on so far.
<A href="http://gsi.xw.gm.com/newsi/showDoc.do?laborOpCode=&docSyskey=689767&cellId=61 782&pubObjSyskey=4293044&from=sm&pubCellSyskey=101 4369#N65756">Installation Procedure
Tighten the nut to 160 N·m (118 lb ft).
This is From the Gm Online Information
1. Install the front wheel drive axle (1, 2) into the transaxle.
2. Verify that the front wheel drive shaft retaining ring is properly seated:
• Grasp the inner housing and pull the inner housing outward. Do not pull on the front wheel drive axle shaft.
• The front wheel drive axle will remain in place when the front wheel drive shaft retaining ring is properly seated.
3. Install the front wheel drive axle into the front wheel drive shaft bearing.
4. Connect the ball joint to the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
5. Connect the outer tie rod assembly to the steering knuckle. Refer to Steering Linkage Outer Tie Rod Replacement in Power Steering System.
Notice: Refer to Fastener Notice in Cautions and Notices.2. Verify that the front wheel drive shaft retaining ring is properly seated:
• Grasp the inner housing and pull the inner housing outward. Do not pull on the front wheel drive axle shaft.
• The front wheel drive axle will remain in place when the front wheel drive shaft retaining ring is properly seated.
3. Install the front wheel drive axle into the front wheel drive shaft bearing.
4. Connect the ball joint to the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
5. Connect the outer tie rod assembly to the steering knuckle. Refer to Steering Linkage Outer Tie Rod Replacement in Power Steering System.
6. Install a new front wheel drive shaft nut. Insert a drift or a flat-bladed tool into the caliper and the rotor to prevent the rotor from turning.
TightenTighten the nut to 160 N·m (118 lb ft).
7. Install the stabilizer shaft link. Refer to Stabilizer Shaft Link Replacement in Front Suspension.
8. Install the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
9. Lower the vehicle.
10. Inspect the transaxle fluid level.
11. Inspect the wheel alignment. Refer to Wheel Alignment Measurement .
8. Install the wheel and the tire. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
9. Lower the vehicle.
10. Inspect the transaxle fluid level.
11. Inspect the wheel alignment. Refer to Wheel Alignment Measurement .
This is From the Gm Online Information
Thread Starter
Joined: Oct 2011
Posts: 163
Sometimes GM later on does revisions that don't show up in the manual. I know on another car GM had later changed the torque spec on the rear axle nut, but the manual never updated to the revision.
Strange how one year would be 159 ft/lbs, the next year 118 ft/lbs. Also possible it could be a mistake.
Though if a shop tightened it down, then it would probably be way over 200 ft/lbs anyways with their impact wrenches they always use. Never seen a tech use a torque wrench.
Strange how one year would be 159 ft/lbs, the next year 118 ft/lbs. Also possible it could be a mistake.
Though if a shop tightened it down, then it would probably be way over 200 ft/lbs anyways with their impact wrenches they always use. Never seen a tech use a torque wrench.
yea ive heard the whole "theory" behind using an impact is that the hamering action of the gun could smash the bearings into the bearing race and put indentions in the race which could cause noise but i personally have never had this problem i usually just use an impact and spin the rotor at the same time.
Thread Starter
Joined: Oct 2011
Posts: 163
yea ive heard the whole "theory" behind using an impact is that the hamering action of the gun could smash the bearings into the bearing race and put indentions in the race which could cause noise but i personally have never had this problem i usually just use an impact and spin the rotor at the same time.
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