Stock steel 19"s (gmt400 series)

Pretty sure no matter what you're going to run into fitment problems on anything lower than stock. They just don't make 19.5 tires short enough. They're commercial truck tires...not like you can find super low profile ones like a car tire in a non-half (.5") size. .5" are all commercial application tires. (16.5, 19.5, 22.5, etc.)

Richard