either track fits with 9 tooth drivers,as mentioned youll need to remove the front cooler protectors, and i removed the tunnel protectors as well. I ran the 1.75, its a tight fit but you can squeeze it in there with 9 tooth drivers.
I eventually trimmed the lugs to a 1.5 because the 1.75 although gave awesome traction, it did hinder the speed noticeably more. Trimmed back it ran pretty dang good up top too, so I think the 1.5 is a better overall comprimise, at least for me it was.