Coveman
I'm Awesome
I run 295 60 18s and did not notice any bumpsteer increase afterwards. i based my parts search on a 06, bought these: https://smile.amazon.com/gp/product/B001D225ZW/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
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i flipped them on my old OBS knuckle as well, didnt seem to really care, i would agree perhaps at Z height this will matter but at the slight crank i had it helped the steering if anything.What year knuckles did you use? Flipping is a big deal because it radically changes the bump steer characteristics.
PM me if you want the photos, I can email them to you
Credit goes to Rocky Thornton:
I went to the NAPA parts store for fresh calipers and rotors and made another huge discovery. The '06-up trucks went to a 13-inch rotor and bigger dual piston calipers that fit right on the '05-back NBS knuckles.
The 13-inch setup requires at least 17-inch wheels, as mine barely clear the calipers.
The 2010 trucks went to 14-inch rotors that would require 18-inch wheels,
but the new 13-inch setup I have now is all the brakes I need. They have already saved my ass a couple of times while towing a trailer behind idiot drivers. I am so happy to have factory engineered readily available big brakes on the front of my Yukon 4x4.
Thanks again Rocky! -Mike
i think 13 is the largest available. i got these https://www.amazon.com/gp/product/B000NSJF00/ref=oh_aui_search_asin_title?ie=UTF8&psc=1