I removed this from my '40 to go back drum in the front. It was on my '40 when purchased so I don't know the source. Doesn't look to have many miles on it. Has discs, bearings, spindle adapters, hoses, caliper brackets, calipers, and spindle nuts and caps. This will probably fit 41-48 as well, but be sure to research to make sure. 5 on 5.5 bolt pattern Trades for parts I could use considered.