Hispec Wheel and Tire, Inc., the maker of your original aluminum 16" wheels, lists 90-120lbs/ft for 1/2" studs, 120-140lbs/ft for 9/16" studs, and 140-160lbs/ft for 5/8" studs.
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2013 Voltage 3895
2011 Ford F-350 DRW w/ Firestone airbags and heavy duty compressor, Edge Insight CTS, Curt Q24
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