Mike Links recommended you to me as an expert on Elwood axles. Grandpa has a 186 with Elwood. I was using it to haul hay yesterday and I noticed that the front axle knob was very easy and more importantly, a lot of drivetrain noise at higher speeds. After jacking up the front wheel and watching the shift linkage, I have come up with the shift fork is not moving the sliding gear. The mechanism turns the fork shaft, so it must be internal. What's you opinion on this? Is the fork not connected to the shaft? Is the buttons on the fork wore off or????????