badbowtie001

I have had my new 2013 Sierra Max for about 3 weeks now and couldn't be happier with the power and performance. Today I did my first trailer towing and the torque monster just climbs those hills effortlessly! I do find I have suffered some on handling with the 2013 as compared to my 2009 which probably has to do with the smaller tires and wheels. Could anyone comment on whether they have changed to 20" tires with the NHT package and if it made any significant difference in towing?