avalanche/H2 Wheels

a friend of mine owns a 2003 avalanche that is a 6 lug and he just got a set of 8 lug 22s off a hummer. im looking to see if i can find a good place to find wheel adapters.

hmmm look on ebay, there is usually people on there that claim that they can make adapters to adapt anything. At least the guy i bought mine from claimed that. Might run into problems with the a few of 6 lug holes and 8 lug holes being in the same place though