I searched first to try and not post something already answered but I could not find this answer. I have a 2003 Marlin and I can not tell how the whole wiper can be changed out (from top of wiper motor on the outside, the whole assembly, not just the wipers themselves) I would think it’s a nut right on top at the base but there does not seem to be a cap to remove as on a car. What is the trick? This must be super easy but I’m lost at the moment. Thanks in advance for any thoughts. The motors are good, just the rest I would like to look a bit better