Chalie M

Getting ready to borrow a socket but not sure of the size anyone know the size ?
Found the torque spec on the forum, but not the size,
Thanks

NJLS708

try 33 or 34mm, others have used 34mm with no problems

Spark 2

The original nuts on my 08 were 33mm.

New nuts supplied under warranty are 34mm?

They are still changing the torque requirements.

Up to 160 lb ft now. Bulletin 07-04-95-001A.

Bill Suttie

Do not get torque happy with that nut. 118 lb-ft is all that is needed. Not anything higher. If you are concerned about it getting loose, add a second nut P/N 10257766 torqued to 100 lb-ft.

cclive

And the original ones on my car are 33mm. Never replaced them as they have been fine, but the new warranty ones are 34mm.

Chalie M

Thanks for the replys, they were last checked when I was getting some warranty work done at the dealer last year.

John Harry

In TSB's 07-04-95-001A and 08-04-20-003 GM says that if the nut is loose it should be replaced and Loctite'd, not just re-tightened.

JoesC5

That's exactly what my dealer did on my 09Z when I had a loose axle nut. He replaced them both and loctie'd then.

Spark 2

I have the new nuts.

Obtained them under warranty.

Will not use them unless absolutely necessary.

I had only one that was loose. Torqued to 118 lb ft with removable

thread sealer (blue). Will watch the index paint marks I applied.

Will never use the thread sealer recommended by GM. I have worked

with it at the Power Plant and it requires a lot of heat to release it.

That is not the best place to apply a lot of heat.

GOLD72

34mm will work for sure. Others have been able to use 33mm or 1-5/16" sockets are well on the originally installed nuts.

FortMorganAl

That is a big nut so the tolerance isn't critical. A 33mm will fit some and some need a 34mm. Get the 34mm and it will work with yours.