this was a super secret concept atv made in 1973 by gmc it was called the crawler. it had a harley shovelhead engine (1200cc) with 4 wheel drive a flame job and chrome racks.
too bad they wrecked it, because it could have changed the world of ATVs as we know it.
It couldn't have had any Harley components in it. Otherwise, it wouldn't have made it up the hill. If Harley had been involved with ATV development in anyway, it probably would have resembled a wheel barrow. Come to think of it, the picture shows only one wheel. Hey - maybe it is a Harley prototype after all. Someone must have towed it up the hill.