If you give Chris at Lod a call (765-385-0631) he'll likely give you the run down on what you need to install them. I've got them on my rig, but I don't recall what size hardware utilized.
One thing I will strongly suggest before you begin your install project, if you don't already have them, invest in a the better/best drill bits for drilling through steel and make sure to oil the bit often. You'll be drilling into the frame and and the cheap bits just don't hold up.
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