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Recommended Lug Nut Specs for 1/2 Inch Studs and 13 Inch Aluminum Wheels

Question:

I replaced steel 13inch wheels with the Loadstar ST185/80D13 Bias Trailer Tire with 13inch Aluminum Wheel - 5 on 4-1/2 - Load Range D Item # AM3S339. My manual says to tighten the steel wheel lug nuts on 1/2inch studs to 70 ft/lbs, would it be the same for the aluminum wheels?

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Expert Reply:

The lug nut torque on aluminum wheels is normally not the same as you get to larger wheels, but on 13 inch wheels they will be the same. Most specs say to torque 1/2 inch nuts on 13 inch wheels to 75-85 lbs. My recommendation is to torque the lugs on your wheels # AM3S339 to 75 foot lbs.

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