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Axle nut torque specs


Chuck Hefti
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40 minutes ago, Flyinhy said:

Should be 150-180 ft pounds 5/8 studs. Torque in a cross pattern too

Congratulations on your recent purchase. Yeah I know what you mean. There's never a dull moment good or bad but the hard work we all put into these machines is out weighed by all of the good moments and memories made.

26 minutes ago, vito.a said:

Are they 5/8" or 1/2"?  Size of the stud, not the hex nut. 

Grade 8, 1/2"NF is 90 ft. lbs.  

I used this chart:

Bolt Depot - US Recommended Bolt Torque Table

Thanks Vito for the chart!

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I stand corrected! As it turned out I found they were #8, 9/16 fine thread (not 1/2") which calls for 129 ft.lb torque. So project done and another lesson learned in the world of RVing! Thank you all for your input, you are the reason we all turn to these forums for help.

On 9/29/2021 at 6:41 PM, vito.a said:

Are they 5/8" or 1/2"?  Size of the stud, not the hex nut. 

Grade 8, 1/2"NF is 90 ft. lbs.  

I used this chart:

Bolt Depot - US Recommended Bolt Torque Table

Thanks Vito for the chart!

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43 minutes ago, Chuck Hefti said:

I stand corrected! As it turned out I found they were #8, 9/16 fine thread (not 1/2") which calls for 129 ft.lb torque. So project done and another lesson learned in the world of RVing! Thank you all for your input, you are the reason we all turn to these forums for help.

Thanks Vito for the chart!

A set of torque limiters and an impact make that job a quickie. 

Just curious , did the flange have groves on the inside?

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55 minutes ago, Flyinhy said:

A set of torque limiters and an impact make that job a quickie. 

Just curious , did the flange have groves on the inside?

Do you mean the grooves around the base of the axle shaft outwards toward the stud holes? If so then yes. 

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