D&L Bensinger Ltd has a series of Youtube videos on converting an M100 trailer to MB including body, hubs, bearings, handbrake and landing leg repairs.
My favourite redneck TV channel has a show called Powerblock TV. And they had a segment on rebuilding drum brakes ( Basic Budget Builds and The Great Race,
MC2012-10
http://www.powerblocktv.com/player/s...-10&ep_show=MC )
Learn something new everyday.