I bought the Nomad because I thought it would need very little regular maintenance except for oil and filter changes. After I bought it I was disappointed to see that the drive shaft needs maintenance every 7,500 miles. I waited until my second tire change to pull the gear case off and grease the splines. The splines were wet with oil and there wasn't a trace of grease on them. Nevertheless I greased them and put it back together. Now that I have a car tire on the back I will pull the gear case off every 10K miles.