It's pretty new... but you might want to take a look at the 
NEW Roller-Skid  replacement skid that it just now hitting the market.  Instead of a  steel or plastic skid that is designed to grind down... this gadget 
ROLLS.   It was originally designed to simply make the job easier, but ended up  having several other important advantages.  There is a pretty nice  little installation sheet that is included that does a pretty cool job  of showing you how to set the scraper bar at the correct height when  installing the Roller-Skids.   Because it's made of 1/4" thick 30% Glass  -Filled Nylon it is extremely durable and because it 
ROLLS  it doesn't scrape and scuff your driveway and walkway surfaces... and  it won't leave rust stains on your garage floor.  Even the axles and  hitch pins are made of stainless steel!  You can see a short video at 
https://sites.google.com/site/rollerskid/.  You can buy them at 
SnowBlowersDirect.com  http://www.snowblowersdirect.com/Raftery-Design-1250/p5415.html  I understand they will begin shipping around November 1st.

	This message was modified Oct 21, 2010 by rafdog