Anyone know the backspacing and offset for stock 17x7 rims on a 1500 quadcab? Or know the size rim with backspace and offset for the best fit?

anyone ???

Pull off a wheel and the offset will be stamped on the back of one of the spokes. Once you get the offset, you can figure out your backspace. BTW, I think the 17's are 17" x 8", which will also be on the back of the rim. I'm guessing the offset is 25.4mm, which has been the offset on Dodge Ram 17" aluminum rims for years.