I just changed my uca to the ones rough country has although now they say for 3in lift only on the website now and got an alignment and retorqued all the bolts on both crossmembers with a torque wrench not just hit it with an impact and havent had any problems since then and thats been about 6 months and this is on a 15 Denali on a 6in rc with 35s on stock wheels