alcoa wheels

[berrybus]

we have our new aluminum wheels. i hear they can break if tightened to much. does any one know the torque? thanks jim

[Ed Brenner]

  My Eagle Manual says 550 lb. for steel  350 for Aluminum.

  I just recently put on accuride aluminum wheels and torqued them to 400Lb. I figure a little lost in extension,accuracy of wrench

  and old nuts. I did replace all outer studs and nuts on drive axle. Any nut that would not screw on by hand on any wheel got replaced, either stud or nut

  depending which was bad.If the threads are stretched they aren't going to torque right.

Thanks , Ed

[stevet903]

Everything you wanted to know about Alcoa wheels (and more!!) is in this document:

http://www.alcoa.com/alcoawheels/north_america/en/hdtt/tech_service/Service_1120_2008.pdf

From the Alcoa doc:

Stud located, ball seat mounting system.
It is recommended to torque to between 450 and 500 foot-pounds. If lubricated with SAE 30W oil
torque should be between 350 and 400 foot-pounds. Note: when dualing steel wheels with Alcoa
aluminum wheels, follow the steel wheel manufacturer's recommendations regarding the proper torque
and use of thread lubricants to mount the wheel.

Here's a thread discussing wheel torque....   Make your own decisions....

http://www.busconversions.com/bbs/index.php?topic=13201.0

Steve

[JohnEd]

Ed,

I have taken some really rough and tough lug nuts and studs and wire brushed them really good.  I have never had one that didn't turn on by hand after cleaning.  Admittedly, I have led a sheltered life and I have never encountered a stretched stud or stripped nut.  I know it happens though I assure you.

John