What is GM doing with this new coil over suspension on the HD line of trucks.  They have lowered the GVW of the front axle from 4925 to 4200 lbs.  I think this was already lower than Ford F250's and Dodge.  Now there are no commercial snowplows available.  They are all too heavy.  I am sure the after market will pick up the slack.  I have seen some spacers for the springs on the 1500 trucks and suv's, but when purchasing a new truck for a business, this could be a huge issue.