Theres a few folks around Calgary and area that have a 4.5" spacer behind
military Hummer rims on their rigs. Theres a machinist here that spins them
from solid 4340 H.T.S.R. slugs. They're a solid one piece unit that bolts to
the hub, with a second set of lugs for the rim to bolt to. No lugs have to
be ground down. Chris @ Evolution Machining & fabrication makes them. If you
scroll through the SERVICES section theres a picture of them. Jen's big red
jeep on their Main page was the first set he made. Not financially feasable
for the average Joe, but absolutely worth it for the serious wheeler.