I would get out of Limon early today if you can. Depending on how much snow they get early that stretch of i70 into Denver can be nasty and may get shutdown if the blizzard conditions pick up. also the mountains look like they may get up to 20 inches in places.
Another couple of shops you could try are high country performance 4x4
http://hcp4x4.com/ or trailjeeps
http://www.trailjeeps.com/ both are a bit out of the way off of i70 trail jeeps is in a jeep dealer in boulder so there would be access to stock parts there.
http://m.9news.com/topstory/article?a=321774&f=1272
KUSA - Saturday will bring heavy snow and winds strong enough to create a blizzard throughout much of central and eastern sections of the state, according to the Colorado weather forecast.
Snow is expected east of the divide early Saturday morning and lasting through the evening.
For all lower-elevation locations along the Front Range, including metro Denver, 8 to 14 inches of snow is expected from the storm Saturday. The 9NEWS Weather Team says that most locations will end up with 8 to 10 inches, with just a few spots getting the higher amounts.
In the foothills and Front Range mountains (including Summit County and Winter Park) 10 to 20 inches of total snow is expected.