Hopefully right section this time .. currently have 2009 silverado ltz with eagle ls2 in 275 55 r20 p tire and thinling on moving to michelin at2 in 285 55 r20 load range e .. would there be muchof a problem with the computer with larger tire and more air pressure ..also if I went with the at2 in 275 65 r20 which is a higher tire 34 inch compared to the original eagle 31.9 and I installed a 2.5 levelling kit do you people think it will work with no scrubbing issues .. thanks again