Thought I'd share how I did mine tonight after work. I didn't take off as much as TFB.
The first two are the obvious closed and opened. (Don't mind the bug guts. I ride it more than I clean it)


Right side I took the liner out of the pocket to access the nut holding the vent knob in place. Left side I merely took a plastic body tool and pried the liner up a little to access the nut.
once you remove the bolt and washers, there's a pin in the top of the unit that rides in the slot in the top of the vent. I gently pulled on the cubby with my hand to wiggle the vent out.Here it is laying on the tailgate of my truck. Once the bolt is removed, there's a few plastic "ratcheting washers" that will fall out. In the cubby there will be a nut, a washer and a rubber bushing/spacer.

I just cut back to the edge of the slots. Don't trust myself to go much further and keep a straight line.



Here's a pix of those "ratcheting washers", actually, the black one went on the bottom. I just transposed them in this pix so you could see both of them.

Here's the order that the bolt/washers/spacer/washer/nut goes back in once you have the vent back into the lower. Both "ratcheting washers" go below the plastic cubby and there are square holes that those fit into.

Finished product.
