Thread: Torque rating for wheel bearings ? Axle nut size ?

Ok I searched and seen various numbers. 97 GTP coupe, is axle nut 36mm ?
Torque for axle nut ? 118 ft-lbs or 151 or 159 ?
Does a 1/2 socket actually fit better on the hub bolts than a 13mm ?

118ftlb

And I think 36 is the stock size but the new ones will be 34. or vice versa. it's been a while.

Cool thanks, need to get this done before Autofair. You still coming ?

It's not looking too promising this spring, but for sure fall

Should be a blast. Looking forward to putting a face to the names of people you see on here all the time.

It is; the Charlotte meet has been my favorite meet out of all meets, I consider Deidre Alan and Buddy good friends and of course all the one I've met there I really do like as wel. I just have a blast at this meet and I hope it continues to grow again

Drive axle
Front wheel drive axle nut 151 ft/lbs

But I have seen 118 also. Just depends on where you get the info.



This might help in the future too


Front suspension
Front lower control arm ball stud to steering knuckle nut 40 ft/lbs
Front lower control arm ball stud to front lower control arm bolts/screws 50 ft/lbs
Front lower control arm mounting nuts 83 ft/lbs
Front stabilizer shaft bracket bolt/nut 35 ft/lbs
Front stabilizer shaft link nut 17 ft/lbs
Front suspension strut to body mount nuts 30 ft/lbs
Front suspension strut mount nut 63 ft/lbs
Front suspension strut to steering knuckle bolts/screws 90 ft/lbs
Front wheel drive shaft bearing bolts/screws 96 ft/lbs

Rear Suspension
Rear suspension strut shaft nut 55 ft/lbs
Rear suspension support mounting bolt/screw 77 ft/lbs
Rear wheel hub to knuckle bolt/screw 55 ft/lbs
Rear wheel spindle rods to knuckle nut 110 ft/lbs
Rear wheel spindle rods to rear suspension support nut 103 ft/lbs
Stabilizer shaft link nut 26 ft/lbs
Stabilizer shaft link to strut bolt/screw 26 ft/lbs
Strut mount to body nuts 33 ft/lbs
Strut to knuckle bolts/screws 82 ft/lbs
Trailing arm bracket to body nut 37 ft/lbs
Trailing arm to bracket bolt/screw 37 ft/lbs + 60*
Trailing arm to knuckle bolt/screw 66 ft/lbs + 75*

All data says 118 ft lbs, as does the GM Dealership website we use at work, any other number is wrong.

In the year 2001, for whatever reason the number does say 151 or 159, yet the wheel bearing and axle nut aswell as the axles themselves NEVER changed, all parts are exactly the same. I've talked with a guy at GM and comfirmed the torque spec is and always will be 118 ft lbs.

Originally Posted by Fivefingerdeathpunch

All data says 118 ft lbs, as does the GM Dealership website we use at work, any other number is wrong.

In the year 2001, for whatever reason the number does say 151 or 159, yet the wheel bearing and axle nut aswell as the axles themselves NEVER changed, all parts are exactly the same. I've talked with a guy at GM and comfirmed the torque spec is and always will be 118 ft lbs.

I agree. I think 151 is way to high anyways.

I agree, 151 seems high.

Yeah the GM service manual from gpona says 118. And alldata seems pretty legit too

you dont use tq wrenches for breaking bolts free. good way to kill it.

Revive a 3 year old thread. Check.
Stupidly use torque wrench to break bolt free. Check, check.
Don't realize that different bearings require different torque. Check, check, check.

when you buy a quality hub, it has the tq listed in the box for a reason.

Alldata and the Gm Ac delco website that I've used while worknig in a shop still say 118 ft lbs.

People can argue it untill they are blue in the face, it's still 118ft lbs. 2001 models got a 159 ft lb rating on alldata but was straight back to 118 the next year.

Just note that that bearing assembly is for more than just a grand prix. Many other cars ran that same hub, the reason for the different numbers is for the cv axles they run. Most bearings are sealed units, they might not require a torque rating to preload them.

a friend of mine ran his gmc 4x4 truck with no front axle in place, dont ya know that hub exploded on him and the whole wheel came off......... no nut and they come a part.

id have to think that tq rating is tested over and over during r and d. to much is bad, to little is bad. aka sweet spot.

I guess it more depends on the bearings themselves, what type and if they need a specific rating to create a preload. Pressed in units and ones on like a ford/chevy 2wd front ends with package bearings are all different in ways they require loading.

True the axle can be there to keep the hub from making them com apart.

I looked up the SKF website too and they have a rating from 118-160ft lbs.

http://www.skf.com/binary/79-66360/457377.pdf

No axle/axle nut and a bearing is going to come apart, pressed in or not.