Installed them tonight, pretty straight forward no surprises.
The bolts that hold them to receiver, I think there needs to be one on top as well to make them a little more stable, it would be tightening down on a flat surface as apposed to the two on the bottom corners being on the rounded surface of receiver.
The Special Allen wrench with the Torx head with dimple in the middle for tightening the bolts that hold the " rock tamer" chrome onto the bottem of flap is cheap and getting worn out and floppy buy the time I was done.
Did not use hole punch to knock out new holes after I cut them down, used a drill for new holes. After cutting them to length there are marked kinda pre drilled holes. I trimmed 3 " off bottem.
For cutting them down there are marks 1.5" apart, I just used a straight edge clamped it the flap and used a razor knife.
All mounting bolts have nylock nuts, probably not high grade stuff so in time will end up replacing them all with good stainless.
model/Item #00108
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This is all the way in

this is all the way out, Can see them in the mirrors
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This is rotated down a bit to get them closer to the ground if needed
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This rotated out a bit to keep them from rubbing on bumper.

 

Did not take a drive after install, I'm thinking with out weight of trailer they will flop around due to receiver being loose and drive me crazy to listen to it.

 

Great setup, there has to be a way to keep them from rattling

 

Interesting setup. I had not seen these.

 

I have the Rock Tamers, they are a great product. I keep them attached to one separate hitch that I just slide in when needed.

These work to stabilize the hitch, but instead of buying one, I just built it myself. With a 5th wheel they don't stabilize without something because there is no weight on the hitch.

Roadmaster Quiet Hitch for 2" Trailer Hitches Roadmaster Hitch Accessories RM-061

Hitch tightener: no wobble, anti rattle stabilizer device for hitch accessories

 

Thanks for those links. Much appreciated.