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Wheel/Bud nut torque

August 18, 2010, 01:25:17 pm

I understand that the torque required for wheel nuts is 450-500 with dry studs and 350-400 with lubricated studs.

What is torque required for Bud Nuts holding the inner rear duals?

More information:
I stumbled on a Proto 3/4 inch drive 500 FtLb Torque Wrench at a local Pawn Shop.
It is reversible only by removing a cover and reversing the rotating peice, but it is reversible.
My tires were supplied and installed by Herman Power in Nogadoches, who used an air impact wrench.
Some nuts are much more difficult to remove than others and some stud threads are lubricated while others are dry.
I marked the nuts before removing them and compared marks after torquing to 400 with lubrication (I am lazy) - alarmingly inconsistent - some over torqued.

Just when you think you can trust a shop!
Wyatt

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Re: Wheel/Bud nut torque

Reply #1 – August 18, 2010, 09:57:10 pm

As much as I can tell from the Alcoa Wheel Service Manual from 11/20/2009, it is the same torque as the outer nut, 350 to 400 ft. lbs. torque with two drops of oil on the outer three threads.

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Re: Wheel/Bud nut torque

Reply #2 – August 18, 2010, 11:53:10 pm

Dave: You asked "your coach uses the hub pilot design instead of the stud pilot, RIGHT"

I am not certain, but do have a square 13/16 on the end of the stud on the rear which I believe is "stud pilot". I have removed and torqued all front nuts and have started with rear nuts but have not actually removed a wheel yet.

Wyatt

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Re: Wheel/Bud nut torque

Reply #3 – August 18, 2010, 11:56:49 pm

"Proto 3/4 inch drive 500 FtLb Torque Wrench"  The older Protos made in Jamestown, NY were excellent quality.  Heard quality slipped when they moved south.  Even the southern ones should be good compared to todays quality.

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Re: Wheel/Bud nut torque

Reply #4 – August 19, 2010, 12:22:03 am

Proto torque wrench I bought was used and is etched with "arctic surveyor", which is the name of a ship. I do not know how old it is but there is "PAT.3,140,623 U.S.A. PROFESSIONAL 3/77 6020-1-PROTO" on the base of the handle. I shows some nicks but not heavy wear. It has easily removed all the front nuts with a 3 foot extender pipe, so I am happy with it.
Wyatt

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