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Old 11-01-2005, 07:57 AM   #1 (permalink)
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Why cross tie-down straps

I see a lot of rigs tied down with the straps crossed, you know, right rear of the vehicle to left rear of trailer, and so on. What's the benefit of this?
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Old 11-01-2005, 08:03 AM   #2 (permalink)
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no clue on straps.. those are for tieing down rubermade totes..

But the reson for crossing your CHAINS to your rig, is to help keep it centered on the deck of the trailer.
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Old 11-01-2005, 08:12 AM   #3 (permalink)
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In order to apply force equally in three dimensions, (given the right rear, you want to pull down, left and back) you ideally would want it at 45 degrees to all planes. In order to get the left to right angle crossing gives you more distance to work with. Its just a geometry thing, some people think its required, others don't. I like to on mine, but I also use straps, so I guess I must be wrong.
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Old 11-01-2005, 08:35 AM   #4 (permalink)
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Well I use straps and chains, and cross the front and rear. Just keeps the rig more stable. I have seen guys cross the back and not the front, and visa-versa. I'd post pics but my web server is down for the time being
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Old 11-01-2005, 09:48 AM   #5 (permalink)
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so was anything ever decided if it was better to strap off the frame as opposed to the axles?

I've heard as many opinions on this as I have crossing straps/chains...
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Old 11-01-2005, 10:55 AM   #6 (permalink)
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I don't know that one way is any better than another....I tie down the frame because I don't like bouncing going on back there. I guess one way of looking at it is, where does the factory locate the transport brackets?
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Old 11-01-2005, 11:55 AM   #7 (permalink)
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I recently switched from strapping the frame down to a chain over the rear axle and ratchet straps to the front axle. I had had one or two times where the ratchet straps had come off on rough roads. It's been fine since, although I haven't had an emergency lane change under hard braking yet either.

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Old 11-01-2005, 12:07 PM   #8 (permalink)
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I can tell you one thing - if you lose one strap or chain while crossing them you pretty much just defeated the entire system. At least if you tie down in a "burst" pattern and lose one of the 4 corners, you still have the opposing corner on the other end to keep things relatively snug.
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Old 11-01-2005, 01:20 PM   #9 (permalink)
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Quote:
Originally Posted by Jrod-13
no clue on straps.. those are for tieing down rubermade totes..

But the reson for crossing your CHAINS to your rig, is to help keep it centered on the deck of the trailer.


Oh B.S. on the dissing straps.
Proper straps, properly attached work just fine.
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Old 11-01-2005, 01:21 PM   #10 (permalink)
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Quote:
Originally Posted by dubbyx
so was anything ever decided if it was better to strap off the frame as opposed to the axles?
Personaly, I'm a fan of chaining the axles, and then strapping the frame to control sway, if needed
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Old 11-01-2005, 01:28 PM   #11 (permalink)
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Quote:
Originally Posted by dubbyx
so was anything ever decided if it was better to strap off the frame as opposed to the axles?

I've heard as many opinions on this as I have crossing straps/chains...


I've heard people claim that attaching the straps or chains to the body keeps
the load (vehicle) more stable on the trailer. Well, I have both a SOA CJ7 and
a rock buggy that I have trailered and I always strap them down by the axles.
Both of them are very softly sprung and I don't feel them bouncing around at all.
I've had NO stability problems. It's been a non-issue.
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Old 11-01-2005, 02:15 PM   #12 (permalink)
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My jeeps frame has holes perfect for the hooks in the straps to go into, so I'll attach the STRAPS (no chains for me) to the frame front and rear, and cross them as well... IF I can ever get my damn trailer done.
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Old 11-01-2005, 02:27 PM   #13 (permalink)
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Clusterhook straps rock!
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Old 11-01-2005, 03:28 PM   #14 (permalink)
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trailer tie down

I have heard bad news in the past about strapping your axles down with CHAIN. When I loaded my 5600 lb scout down on a trailer, I did four individual chainbinders, 1 per corner, and bought nylon straps to wrap around the axle tubes. I believe Calif requires four tie down points.
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Old 11-01-2005, 03:41 PM   #15 (permalink)
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OK, webserver is back up....


I use straps around the axle and then chains crossed in the back. The hanging chain is just the excess held up with a bolt.


3500lb WLL hooks on the trailer end


And combo axle ratchet straps in the front, also crossed.

My junk doesn't budge at all once tightened down.
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Old 11-01-2005, 05:34 PM   #16 (permalink)
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Quote:
Originally Posted by Jrod-13
Personaly, I'm a fan of chaining the axles, and then strapping the frame to control sway, if needed
x2

Body can bounce around and let the link loosen up/un hook. The axel dosent bounce. I then put 2 strap on each side on the rocker guard to control boucing/sway of the body.
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Old 11-01-2005, 08:02 PM   #17 (permalink)
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might want to look at professional auto transporters. they cinch the vehicle down to the bumpstops or pretty darn close to it. you never see a car tied down on a large transporter by its tires or axles. even if you cant see up into the underside of the car, the wheels will be stuffed into the wheel wells, showing that the body and frame are pulled down tight. Not saying that there is not any other way. Just looking at the people who make a living doing it day in and day out all year...
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Old 11-01-2005, 08:34 PM   #18 (permalink)
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Quote:
Originally Posted by SanDiegoCJ
Oh B.S. on the dissing straps.
Proper straps, properly attached work just fine.

X2 I have a set of mac's straps, VERY quick and VERY stout. Reinforced where they wrap around the axle.
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Old 11-01-2005, 08:48 PM   #19 (permalink)
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Quote:
Originally Posted by 85blue4runner
might want to look at professional auto transporters. they cinch the vehicle down to the bumpstops or pretty darn close to it. you never see a car tied down on a large transporter by its tires or axles. even if you cant see up into the underside of the car, the wheels will be stuffed into the wheel wells, showing that the body and frame are pulled down tight. Not saying that there is not any other way. Just looking at the people who make a living doing it day in and day out all year...
Yes, but almost all of those vehicles have about 2" of wheel travel. I have done it both ways - just recently switched to strapping axles instead of frame and I gotta say I prefer the new way better. Like I said, I've lost a strap when hitting a bump with the frame tie down method and also bent one end of the trailer heading into JV a couple years ago when the suspension compressed and rebounded.
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Old 11-02-2005, 12:30 AM   #20 (permalink)
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I use chains from the front and rear bumper to compress the suspension and keep it tight.

Then a pair of straps from the axles, all of them in the >< pattern. Never had a problem with it. It keeps the vehicle from shifting from one side to another...
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Old 11-02-2005, 05:48 AM   #21 (permalink)
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Quote:
Originally Posted by Jrod-13
Personaly, I'm a fan of chaining the axles, and then strapping the frame to control sway, if needed
Ditto.

I chain the rear axle in a X, strap the front axle, and then run straps to the sides of the rig (rock rails usually) to control the body roll, but they are not cinched down really tight, just enough to take the slack out of them.

My 3500 doesn't care about the rig flopping around on the trailer, but it's just more secure.

I have had to perform an evasive maneuver (thanks to my dumb ass being inattentive) with the rig strapped down like this, and if the frame wasn't held in place at all, I don't think the trailer would have tracked as well because of the weight shift.

basically, it was nail the brakes as hard as possible to scrub off speed, then release, steer around the stopped car in front of me (that I didn't notice because of said dumb-assness), then back on the brakes again hard once straightened up.

A couple of the hot shot guys I know/talk to have been using straps over the tires of cars, and are very pleaseed with the results.. That's how my Audi was transported when I sold it, and the body kit wouldn't have allowed using the frame tie-downs anyway. I think Porsche and Ferrari both say to not tie down to the frame, instead, use straps through the wheels? Anyone know for sure?
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Old 11-02-2005, 08:05 AM   #22 (permalink)
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Quote:
Originally Posted by 4x4not
OK, webserver is back up....


I use straps around the axle and then chains crossed in the back. The hanging chain is just the excess held up with a bolt.


3500lb WLL hooks on the trailer end


And combo axle ratchet straps in the front, also crossed.

My junk doesn't budge at all once tightened down.
The way you have that hooked up it pretty much defeats the purpose of the X pattern. No way I'd strap my rig that way.
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Old 11-02-2005, 08:29 AM   #23 (permalink)
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Quote:
Originally Posted by DRM
The way you have that hooked up it pretty much defeats the purpose of the X pattern. No way I'd strap my rig that way.

I agree

One of the most important things is to strap the outer most part of the axle tube then go to the other side of the trailer

The advantage to the x pattern is to hold the rig from moving side to side and front to back
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Old 11-02-2005, 08:31 AM   #24 (permalink)
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Seems to me strapping down the axles is the most secure (impossible for the vehicle to "hop" because of suspension movement.)
Then a couple of light duty straps run to the sliders to keep the body from bouncing around if you notice that it is prone to do so.
I think the "X" pattern would be the worse placement IF you had a tie down failure. The "starburt" pattern anchored well away from the vehicle (as opposed to straight down) to me makes the most sense.
Also, since I chose a short trailer (14') I run my front axle straps/chain to the rear deck rings and the rear axle straps/chain to the front deck rings. Again, the greater the separation (within reason) the more secure the load. Just my .02
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Old 11-02-2005, 08:33 AM   #25 (permalink)
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pro car transporters tie down the body because the car is inches away from the trailer structure, not because it is more secure.
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