The snowplow is no problem. This is the third winter with it on. I now have 90K miles. Nothing has broken, no transmission, suspension, transfer case problems. I had 11 inches of snow to plow on Friday and made stacks about 6 ft high with no problems. I had to clear about an acre where my semi-truck deliveries pull in to my dock. I have to use 4 low in that lot because it is gravel and need to plow slowly to skim the snow just above the gravel. The truck and plow satisfy 100% of my plowing needs. I did change the tire size back to original, still BFG All terrain. I get better traction with the narrower, smaller tires. My plow was installed by Tim Wallace snowplow supply in Bolingbrook, IL. It has never been back for any repairs at all. I used to have a few plow accounts that I did just for fun. I clear my 200 car church lot if the regular plow is late. I looked into a receiver hitch salt spreader that would work on the Trac but I didn't think it was worth $1100. As a snowplow, the ST works fine. Voids warranty? I doubt it. My truck was only under warranty for 1 year anyway with the amount of miles I drive.