Axle was from a two wheeled wheelbarrow. They wanted 150$ a hub for the golf cart hubs so instead of paying, I cut the wheelbarrow rims in half and bolted them to the inside of the golf cart wheel rims. The wheelbarrow wheels were already setup for that axle. I did weld two flat steel plates to the axle that I bolted to the alumnium cart. So I did make a couple small steel welds.