D-Ring tie downs in the garage - Dutchmen Owners

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Old 04-10-2016, 03:00 AM   #1
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D-Ring tie downs in the garage

We have a 2014 Voltage Epic 3800. The tie downs in the garage are not bad, but with a 900 lb Polaris RZR 800 tied down the rings are deforming badly. Moving p to a Polaris General that weighs around 1600 lbs. So decided heavier D-Rings are needed.

My plan is to install five. Three across the front and two at the back of the garage. The three at the front will be for two tie down straps and one to hook the winch to.

A little more on the front three. The two outside ones will be placed so that the door to the living area and the door to the garage bathroom can be opened with the straps in place tying down the new Side-by-Side. It been a PITA not being able to open the doors once the machine was in. Moving the D-rings in some shouldn't make any difference. There is still plenty of "spread": in the tie downs and reality says the goal is to keep the machine from moving back and forth. The center D-Ring will be placed in the center of the garage and inline with the other two new ones.

A bit more on the to rear ones. The existing tie downs are spaced so wide that the straps have been in contact with the rear tires. And on one trip, a strap failed due to the rubbing. So I have moved the new ones in so there is still plenty of spread, no interference with the sides of the "tool box" in the dove tail.

So here we go! First thing was to make sure there was no interference with anything under the floor. On a 3800 the belly skin ends at the structural cross piece about 10" forward of the center of the spare tire hanger. The belly skin is 78 inches wide at that point. Here's a pic:



I made several marks 39 inches from one side, so down the middle, and then used a straight edge to make a cut line. Just used a utility knife to slit the belly material and a layer of reflective aluminum foil. Here's a pic of the underside of the garage floor, as you can see its empty space:

From the cross member where the belly skin ends, to the rear face of the black water tank is 59.75 inches. Where the original tie downs are located, the long self tapping screw went through a small cross member. I opted to make sure none of my bolts would go through any structural member as they will be 3/8" bolts!

I'm a PlasmaCam owner and heck of an Autodesk Inventor designer. So I took one of the new D-Rings and designed a template for cutting the holes in the basement floor. Which by the way is 7/8" OSB with a 1/16" rubber cover. So pretty thick stuff. My template has matching holes for the ones in the D-Ring, so I used strips of gorilla tape to hold the template in place, drilled the four holes an inserted the bolts: Here's a pic of the template in place:

I used a Roto Zip saw with 5/32 collet and blue label bits for cutting OSB. Make sure the cutting edges of the bit start below the .120" thick template. Remove one bolt at a time to allow the Roto Zip face to rest on the template while cutting in that area. So to make the entire cut, each of the four bolts will need to be removed...but one at a time. So, remove one, cut that area, put the bolt back in and pull the next, etc.
Here's a pic of the partially made cut. Also note that I drilled an extra 3/8" hole just on the inside of the template to provide a starting point for the Roto Zip saw.

Here's a completed cut with the floor section removed.

Here is a D-Ring installed and the four carriage bolts in place.


On the underside, I use a 6" square backing plate with 5/8" holes, flat washers and Nylock nuts:



Here's a pic of the new front three D-Rings installed and my Supervisor Randall checking the work:


Repeated five times and all done! I did get replacements for the original tie downs and installed them. What else to do with a 3" diameter hole in the floor?

For fear of running out of room. If you would like dimensions of D-Ring positions, I can provide them. If you're interested in my templates and backing plates. Let me know. Project went just outstanding!!

PIrate
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Old 04-10-2016, 09:20 AM   #2
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Nice! I may add some just have extras, but out D-rings still look good after tying down our 900XP4 several times. I can't open the door no matter what as there is about 2" in front of and behind our! LOL. Also, I hook up tie downs from front frame of RZR to rear tie downs and from rear frame of RZR to front tie downs - no movement. I wonder if that makes a difference in the stress on the tie downs and why maybe mine aren't deformed at all? Hmmm
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Old 04-10-2016, 03:38 PM   #3
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I've seen lots of different ways to "run" the tie downs. Me, just two in front going forward and two in the rear going to the rear.

We did spend a lot of time, a couple of years actually, looking for a Toyhauler that had what we wanted. The 14 ft garage, the big bathroom with a shower stall, a walk around bed in the bedroom, the nice size wardrobe cabinets, a big refrigerator...and probably more, my not quite awake, brain can't recall. The Voltage Epic III had all of them and more.

Perhaps part of my fetish for pulling tie downs really tight...we had rear strap break. I think due to rubbing on the rear tire...and that RZR800, parking brake on, three straps...and it danced all around in the garage an did damage on all four sides!! That was about $3000 in repairs and I did a lot of them myself. So 6000 lb rated tie downs, facing such that the pull is with the ring, not standing it up and pulling backwards on it.

Just me!

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Old 04-10-2016, 03:42 PM   #4
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Pirate, Great Job, I have been planing to add some more D-Rings also, The Can-Am is also large like your new General
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Old 04-10-2016, 10:47 PM   #5
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Ouch on damage. Main reason I strap down the way I do is just the length of the RZR vs the length of the garage. I do think I'll still add more tie downs. If I go with the heavier ones, like you, I'll use those for the RZR and the OE ones for our extras that we carry
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Old 04-11-2016, 02:03 AM   #6
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Don,

And if you would like one of my templates for cutting the holes in the floor and my backing plates for the underside. Just let me know.

I suggest getting my template before buying the D-Rings...then you'll know they are the same. There are some different D-Rings out there.

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Old 04-11-2016, 03:34 PM   #7
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I travel with a 900 pound Harley in the garage and the D-rings are fine. Wonder why yours are having issues?
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Old 04-11-2016, 04:19 PM   #8
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Pirate,

Your new D-rings look like they could hold a Mac truck. Nice

If I may offer a suggestion, as your floor is OSB I would add a piece of plywood across the frame for added support. I have seen stuff mounted on OSB where there is alot of tension and the surrounding OSB fails. If your like me, I get the suspension on the quads compressed then give another couple of clicks on the ratchet straps.
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Old 04-12-2016, 12:47 AM   #9
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The two original D-rings that are failing are the two at the very rear, mounted on the beavertail. They are so far apart that my ratchet straps holding the back end of the RZR were literally pulling sideways on the ring...thus those extra couple of clicks pulled hard an deformed the ring.

I went with the heavier D-rings...just cuz... I also set them closer together so that the pull would be inline with the D-ring, and if off a bit...still pulling on a round, hell for stout ring.

Jim, if you look at the pics, I put a 6" x 6" backing plate on the underside, tight up against the OSB garage floor to distribute the pulling forces. With 7/8" OSB and the steel plates...I kinda doubt I could pull one of the new D-rings out of the floor!! But I did give that issue some thought!!

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Old 04-12-2016, 03:44 PM   #10
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Quote:
Originally Posted by Pirate View Post
The two original D-rings that are failing are the two at the very rear, mounted on the beavertail. They are so far apart that my ratchet straps holding the back end of the RZR were literally pulling sideways on the ring...thus those extra couple of clicks pulled hard an deformed the ring.

I went with the heavier D-rings...just cuz... I also set them closer together so that the pull would be inline with the D-ring, and if off a bit...still pulling on a round, hell for stout ring.

Jim, if you look at the pics, I put a 6" x 6" backing plate on the underside, tight up against the OSB garage floor to distribute the pulling forces. With 7/8" OSB and the steel plates...I kinda doubt I could pull one of the new D-rings out of the floor!! But I did give that issue some thought!!

Pirate
Pirate,

I did see the backing plates and they look substantial, but I have seen D-rings pulled right out backing plate and all, leaving a hole about the size of a basketball. That set up was a bit different than yours, the D-rings were on a vertical wall and the tie downs were pulling on the horizontal.

Your setup most likely won't put the same amount of stress on the OSB as that one. I just thought I would mention it.
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