^^^ what he said, the offset is a little different on them, the tires will be about even with your fenders, and the stock gmc center caps will work with them
Pic of mine (OBS truck but you get the idea)
Owner-H&K Diesel Performance
Rig: 2003 Black ECSB Silverado LT
Performance: 40% Exergy Injectors, Straight exhaust, Profab downpipe and intake horn, EFI Live w/dsp5 tuned by IdahoRob, ADII 165, Cobalt boost and pyro guage w/ Aeroforce Interceptor Scanguage, FabTech tie rods, S&B Intake, PPE boost valve.