Finally flopped.

[helocat]

Originally Posted by IdahoDoug

I have no hand in what's moving into a debate on force, but I think it's *very* important to differentiate between the very low forces on a slider of dragging it over rocks or lifting with it and what happened here.

Merely lifting a vehicle is child's play - let's call it 3000lbs if you are lifting 50% of the truck's weight with a hi-lift (you aren't). Dropping a 6000lb truck only a few inches may generate a peak force of many times that - say 40,000 lbs - if the surface it hits does not deform (like a rock).

It's why you can try unsuccessfully to push a nail into a board by standing your 175lbs on it all day. Then easily do it with a 1lb hammer in 3 strikes.

DougM

IdahoDoug is nailing it here. (Pun intended with his analogy) Rolling is a whole other chapter when it comes to forces and how things are designed for them. Sliders should not be designed for a roll, period. If you are designing for a roll in an FZJ80 then cut body and properly cage it. Not just web wheeling here, Metal-tech shipped its 400th roll cage two months ago for FJ40’s.

.188” wall box sliders are structurally speaking close to the lower section of the Metal-tech sliders. The lower section is CNC laser cut from a flat plate of .188” and then CNC formed to the shape shown below. All four of the bends are facing the direction of outside impact. (vrs. Standard box where there is only two) The .250” laser cut internal vertical gussets are then put in like ribs in a wing. The ribs are over kill and are what send it off the chart in strength.



We then go and put the two stage rub rail on the outside to help protect the upper body of the truck. Also don’t forget the one piece .500” laser cut and formed and reinforced plate that is the front mount and cat guard on the right side, these crush rocks.

[CreeperSleeper]

Originally Posted by steveVA

"At this point I told my passenger I was going to take one more shot at it, then back down and claim defeat."





I have learned in my short 35 years that whenever you say "one more" thats when you get into trouble..ie. im going to catch "one more" wave, "one more" run on the snowboard, "one more" lap on the MX track.. So I NEVER say "one more" anymore..
Sorry about your "one more"!!

Yeah, I know... I just can't stop myself!

[CreeperSleeper]

Okay, here are more pics of the slider...

As you can see, I didn't touch the main part of the slider at all, just the rub rail...


This is how much it moved... I'm, personally, very impressed. That was a lot of force!!!




Here is a different trip up Can-Opener when I was testing the sliders. I was sliding sideways into the rocks here:

[corsair23]

Originally Posted by helocat

Also don’t forget the one piece .500” laser cut and formed and reinforced plate that is the front mount and cat guard on the right side, these crush rocks.

I can vouch for that!

I've hit that sucker so hard on rocks only to get out to look at the damage and see...well not much of anything . A little scrape if that on the guard while the rock was looking much worse for the wear. I'm still struggling with not cringing everytime I hit my sliders, but that is just because they're so damn purdy I don't want to scratch 'em up, because they definitely are stout

[Mars]

Good points about the sliders. That tubing took a serious hit and only deformed a few inches...that's pretty good in my book.

[Wrench]

Wow the pics of the slider doesn't look bad after all. Not bad for the force it took.

[LT]

Damn Chad... it was going to happen some time. Time for the sawzall!

As for the rub rail bending I am not surprised on that obstacle. I tried it back when it was covered in snow and ice. It is a full throttle assault just to get past the first rock (couldn't even get past the first rock). I am pretty sure knowing Chad he had the rev limiter bouncing trying to get up that last part. Having a 6,000 lb truck land on those rocks, pretty much was the kiss of death.

It is far different when you are slowly crawling over rocks as Mark and I did at Katemcy. We thoroughly hammered our sliders on his 80 series have some serious deep scoring in the tubing. In the case of Chad this was sheer momentum. If you look at rock crawling buggies you will find that the DOM tubing is bent to hell and back from slamming into the rocks. And those suckers weigh in the area of 2,500 lbs. Everything has a breaking point.

BTW Chad you should of tired going down it for some extra pucker factor

[Skillet]

Ih8bodydamage

[lowtideride]

In any case, your slider bent far less then your sheetmetal would have.

[CreeperSleeper]

No kidding! It's all taken care of now, I dropped them off at MetalTech and they retubed them for free! Thanks Mark and LT!

[FJBen]

Originally Posted by CreeperSleeper

No kidding! It's all taken care of now, I dropped them off at MetalTech and they retubed them for free! Thanks Mark and LT!

that is some awesome vendor support for another great mud vendor.

[CreeperSleeper]

Originally Posted by FJBen

that is some awesome vendor support for another great mud vendor.

No kidding. And (I think it shows on the first page) they saw this thread and told me to bring them in. I didn't ask for them to do that. MetalTech = the awesome.

[FJ40_owner]

How much air pressure did you have in? Your tires look like they are not aired down.

['74 UA FJ]

Originally Posted by CreeperSleeper

Well, it was bound to happen… Last Saturday, fate finally won and I flopped my 80. It was a soft flop, thank God, but a flop just the same. It was on an obstical called Can-Opener on Archer’s Firebreak in the Tillamook State Forest OHV trail system. Now I have made it up Can-Opener a few times, but always in the dry. In fact, the only time I ever tried it wet was to get the MetalTech rock slider shots! Well, this time I went for broke, and broke I did. The pics will show the body damage, but I also broke a passenger side Birfield. That makes two in a month… This is becoming an expensive year!

Here I am first starting up Can-Opener. This will give you some idea just how steep it really is:


Here I’m just approaching the hard section. If you have never wheeled in this area, take a look at my tires… The mud is like baby crap.


This is about as far as I made it on my first run. The majority of rigs stop right about here.


Setting myself up for a second attempt…


Denied… I’m going to need more momentum for this.


Crap… That didn’t work. I have to be farther up that wall… At this point I told my passenger I was going to take one more shot at it, then back down and claim defeat.


YES! I made it past the first rock! Now stay on it to keep momentum. In this pic, you can see just how much I’m side walling that hill. And it is still as steep as the approach!


Well, the cameraman couldn’t cycle thru shots fast enough, but this is after I laid it over and bounced back to my tires. It was here that I lost momentum.


And here that I broke the Birf…


My fearless passenger and best friend Jordan goofing around as we are waiting for the hook.


The depressing part of the story is a J**P got me to level ground! (Actually, that J**p is owned by Randy, who owns J&H 4WD in Portland, OR. This man is a master at recovery and I was very thankful to have him and his equipment along!)


DAMAGE PICS… Damn, lost another taillight… (BTW, look at the slider!)


Amazingly, everything still opens, all the windows work and no glass broke… Not even the mirror.




And for those who don’t know this truck, this is what it looked like when I bought it 2.5 years ago:

I didn't read the thread, so this may have been asked already. If so, I apologize.

Could you not just pop over the big rock and try the line straight up?


I feel you man. I just rolled my 40 on Saturday...

[Nay]

Toyo MT's for sale

Amazing how much protection the step tube on sliders can provide, that saved your sheetmetal.

Back to that front axle - how are you going to make that thing strong enough for that kind of momentum wheeling?

Seems a lot easier to make an 80 feel smaller on big, grippy granite than in that boulder strewn slop. You need 40" Swampers for that kind of stuff

[CreeperSleeper]

Originally Posted by '74 UA FJ

I didn't read the thread, so this may have been asked already. If so, I apologize.

Could you not just pop over the big rock and try the line straight up?


I feel you man. I just rolled my 40 on Saturday...

I probably could have if I didn't have those POS Toyo Open Country M/Ts!

['74 UA FJ]

Originally Posted by CreeperSleeper

I probably could have if I didn't have those POS Toyo Open Country M/Ts!

Time for some 38.5 x 14.50 SS SXs.

[CreeperSleeper]

Would be nice... *sigh*

[LT]

Originally Posted by CreeperSleeper

I probably could have if I didn't have those POS Toyo Open Country M/Ts!

37x14x17 bias ply Iroks.... you know you wanna

[concretejungle]

LOL, why do you all keep talking about saving his sheet metal? Have you not seen his truck?

I love it. I love to see someone taking the station wagon through the hard stuff!

[CreeperSleeper]

Originally Posted by concretejungle

LOL, why do you all keep talking about saving his sheet metal? Have you not seen his truck?

I love it. I love to see someone taking the station wagon through the hard stuff!

Why thank you! And it's true, there isn't much to save anymore!

[Dusty]

i dare anyone to post a pic of a bolt on slider supporting the entire side of an 80 via a highlift. home built or production. if the slider is the pass side and the highlift is toward the front you get bonus points.

[CreeperSleeper]

Will a forklift work?