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Old 11-06-2015, 03:22 PM   #11
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Why are the bolt holes slotted in the first place?
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Old 11-06-2015, 03:28 PM   #12
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Why are the bolt holes slotted in the first place?
So the wedge has enough 'adjustment' to fit the various hitch plate tapers.
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Old 11-06-2015, 03:31 PM   #13
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If they have slots shouldn't there be a flat washer under the lock washer?
The best thing to do with the slots is cut a pc of steel and fill the slots front & back and then just use the lock washer. The flat washer over a slot with a lock washer just defeats the design of a lock washer as the flat washer can and does turn under a lock washer. Best thing to use on a slot is a serrated flange bolt like a Whiz bolt.
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Old 11-06-2015, 03:37 PM   #14
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Or use flat washers like these...


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Old 11-06-2015, 03:40 PM   #15
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Or use flat washers like these...


ONLY if they are serrated on both sides.
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Old 11-06-2015, 03:59 PM   #16
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Is the wedge there to compansate for how the pin mates up to hitch head angle.....height differances of tv's?
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Old 11-06-2015, 04:13 PM   #17
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The reason I'm ask'n, if that hitch set-up moves the turn radius back what it does, it would improve my situation over my slider, asit only moves back about 7" on a hard turn. Had to do a lot of height chang'n of truck and pin box to stay level....so, to know what I'd be look'n at, I'd to know some ones bed to ground height and bed to level plate height that pin plate sits on.
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Old 11-06-2015, 05:28 PM   #18
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Is the wedge there to compansate for how the pin mates up to hitch head angle.....height differances of tv's?
The wedge is there to stop the king-pin, and the entire pin arm (right term ?), from turning in the hitch. The wedge sits right behind the king-pin and slots into the slot in the hitch head (that the king pin goes through when hitching up).
This is so the rotation is at the pin box on the 5th wheel, rather than at the king-pin/hitch
The offset of the sidewinder/revolution moves the rotation point 22" behind the king pin.
In a 6'9" bed, with the truck at 90 deg to the camper (which I've never actually had to do), I have about 9" clearance between the rear of the cab and the front/side of the trailer.

A regular non-slider hitch (like the Reese Titan 16K that I use) is height adjustable (5" height range, over 4 stops, iirc)

P.S. Does anyone know if any of the Reese Airborne Sidewinders (which have the shock absorption of the Airborne, with the rotation offset of the Sidewinder), are compatible with the pin-box of the Rockwood ultralites ?
Reese - 5th Airborne Sidewinder

I'm also wondering if it's worth getting the custom-fit wedge, like this one: -
Reese Titan Wedge!
instead of using the generic one. (I have a Reese Titan 16K hitch)

P.P.S. I keep a large torque wrench (rated to 250lb/ft) under the back seat of my truck, so I can always check and re-torque both the bolts on the revolution, and the bolts on the hitch frame. I visually inspect every trip, but only check torque every couple of trips.
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Old 11-06-2015, 06:17 PM   #19
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Bob,
As mentioned, the wedge mounts under the pin box and contacts the 'V' in your hitch plate to 'lock' the pin box to the hitch plate. This moves the pivot point from the hitch pin back to a pin point directly under where the pin box typically bolts to the frame of the RV.

The wedge has nothing to do with changing the height of your pin plate or the pin box.
I understand you asking for measurements but with every truck having a slightly different ride height due to spring rate, timbrens, air bags, etc., I'm not sure anyone else's measurements would help.
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Old 11-06-2015, 06:31 PM   #20
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Your right. ..the pull-right is 17and1/4" above bed, so really depends on heigth or Reese hitch height.
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