I have a procomp 2.25" as well, my dealer recommended it and installed it. my tires are 275/65R20 BFG KO2 on the stock wheels and i can make the passenger side rub the upper control arm on a full lock turn. i also had to ziptie the pastic on the inner fender well of my passenger side. Seems pretty level to me and rides the same as far as i can tell.
Have the same size tires on mine (275/65R20 BFG KO2). Installed a procomp 2.25" level kit and had to zip tie the passanger inner fender well back and it will barely rub the UCA on the passanger side on a full lock turn to the left. I can still make a uturn across 2 lanes and i havent had any issues driving.The only way to fix the rub on the UCA is to have a wheel spacer or a wheel with less backspace. The stock rims are +27mm offset i believe and something like a +18 would probably do the trick. I didnt really notice a difference in the way it drives other than the fact that im much higher off the ground. https://www.procompusa.com/suspension-product-details.aspx?pt=9333&pl=7142&pqq=2286&pqa=13247
agreed, I really just like the pad attachments they have for the jacks, maybe ill just buy a flat one and an axle one. It says they use a omega (10065B) jack in their kit; it also looks like they mark up the price. https://safejacks.com/products/6-ton-omega-bottle-jack https://www.amazon.com/Omega-10065B-Black-Hydraulic-Bottle/dp/B002KRUCHC/ref=asc_df_B002KRUCHC/?tag=hyprod-20&linkCode=df0&hvadid=245695760609&hvpos=1o2&hvnetw=g&hvrand=1039424222803477962&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9025239&hvtargid=aud-466360936450:pla-568873785100&psc=1
If we are talking about rubbing the plastic, you hear a noise inside the truck but its harmless and easily fixed. if we are taking about rubbing components, thats a different story. IMO if you did it quite often it would probably be harmful but its probably not as bad as rubbing a concrete curb with your sidewall. Its something I can live with until I get a new set of rims in the future.
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2018 GMC Sierra SLT 4x4 Z71 2.25" Procomp front only level kit - Dealer installed 275/65 R20 (34.1" x 10.8") BFG KO2 tires on stock 20" chrome wheels Very minor rub on passenger side inner fender well, fixed with zip-tie. Rubs passenger side upper control arm at FULL LOCK turn to the left; you really have to be turning hard to make that happen. Driver-side seems fine, I can't make it rub at all.
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