Bolt pattern, thread size, and seat style for your truck, researched from fitment sources. Including the year splits that catch people out: Ram changed threads mid-run, and so did the F-150.
The 60-degree tapered seat most trucks use. The taper centers the wheel on the studs as you tighten. Nearly every listing in this finder is conical, and most aftermarket wheels are cut for it.
A flat washer face with a shank that slides into the wheel hole. Toyota factory alloy wheels are the famous case: their own instructions require flat shank nuts and warn against acorns. A conical nut on a flat-seat wheel contacts on a knife edge and will not clamp right.
Thread size follows the truck's studs; seat style follows the wheel you are bolting on. Factory specs here assume factory wheels. If you swap wheels, match the nut seat to the new wheel and keep the thread from this page.
It depends on the year, and Ram is the trap: 2009 to 2011 trucks use 9/16-18 studs, 2012 and later use M14x1.5. The pattern is 5x139.7 on the 2009-2018 DS body, and 6x139.7 on the 2019+ DT body. And a 2019+ truck badged Classic is the old DS body wearing new badges.
No. The wheels interchange because both generations are 5x127, but the JK uses 1/2-20 studs and the JL uses M14x1.5. Same wheels, different nuts.
No. Both are 6-lug, but GM is 6x139.7 and Ford is 6x135. Close enough to look right on the hub, far enough to be dangerous. Pattern is measured in millimeters for a reason, and 4.7 mm is a mile in wheel fitment.
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This lug pattern finder is one of 11 free tools in the Pistons & Ink Digital Toolbox, built for the aftermarket auto industry. If it helped you, the rest of the toolbox is right here.
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