Boxing the frame?

So, if I understand your theory it's:

A. Your mom's truck has a windshield has a crack that grows
B. Your dad's truck has a windshield has a crack that grows
C. Your truck has a windshield has a crack that doesn't grow

From that you conclude that your frame doesn't flex and theirs does, because that's the only possible cause. How can you determine that all 3 frame/body combinations offer the same rigidity or that all 3 windshields have the same construction and strength? Have any been in an accident that have created binding or compressive forces? What about rust? Broken or missing body mounts? The location of the crack in the windshield?

OK. Lets say your assumption is correct, your truck isn't flexing but theirs are and that is absolutely the only force in play making the cracks grow. You still are still missing the point that the frame is strengthened by the body. How can you determine by the evidence shown that the frame does NOT benefit from the body? Even if the body is stressed by loading from the frame, it doesn't matter unless the stresses are great enough to overcome the structural integrity of the welded steel body and distort the body in the windshield area. Your analysis does not support the conclusion that the frame is so strong that it doesn't gain rigidity from the body. You also haven't ruled out or even acknowledges any other possible cause(s) which weakens any failure analysis, it shows that you picked a possibility and then set out to prove that as the only possibility, not search for proof of causation.

 

You lost me by the 2nd paragraph

The frame on the frontier is jello thats a fact, i can see the body and bed move around as it drives it has 7k miles he got it with 40 so no it wasnt wrecked

I dont doubt the bodies support the frame but given that the doors open and close fine and pannels line up on my truck when see-sawing on 2 wheels tells me there isnt much stress on the body paired with the fact cracks dont run tells me there isnt significant force twisting the body as it drives around

whereas the frontier with a flexy frame will spread the crack every turn but rides great if you ignore the reverberation of bumps after you go over them

If the frame of an suv flexes how does the sheet metal not end up warped... one continuous piece of metal from a pillar to rear quarter (roof and rocker)... if my 4 runner flexed half as much as i can see the frontier flex every spot weld would be pulled out and the body pannels wouldnt be straight

But i know our frame do flex when pushed ive seen the body crack threads

 

Did you end up going AG? Hangers and shock relocation kit? Cross bar?

 

The ultra high strength steel that rusts out you mean?

 

I have hammer hangers with a cross bar, another custom cross bar for limit straps, and a bamf relocate with 12” smoothies. Doing it over I would do ag relocate and 14s.

 

Big waste of money,everytime a Tacoma gets hit in the frame,it does its job and folds up where the collision ribs are on the frame,so boxing the frame will do nothing at all.

 

All intreated steel rusts unless it is special alloy. Hell, they even make a steel designed to rust called Cor-ten.

 

Granted. But some steel rust easier than others and some like what Toyota uses seems to rot away

 

Please, someone correct me if I'm wrong, but doesn't moisture have to be present for metal to rust?

So, if a frame was boxed in correctly and completely with no holes in it whatsoever, how would moisture get inside to make it rust? You could probably even coat the inside with rust inhibitors before you close it up completely.

Or how about this, does anyone remember when ford was filling parts of the truck cab with expanding foam for sound deadening purposes? What if you boxed in the frame completely, then drilled holes in the bottom every so often and fill it with spray foam? No moisture will get in there and let it rust and it would problem cut down on some kind of noise. And if you think it would get moisture, tack weld the little holes closed, problem solved.

 

Can confirm, I can jack my truck up and see the rear of the frame flex lol. Thin C-channel+soda can thickness crossmembers that are riveted in=No match for any sort of added weight or abuse.

 

Unless the whole frame is boxed in the areas that you do box in will have weak points and will crack.

 

And for reference "HSS" means High Strength Steel and "UHSS" means Ultra High Strength Steel (I hate acronyms).

 

Its been shown that that is wrong. All box kits box up to the gas tank crossmember, and then most people who do box the rear frame in have weld on sliders/slider plates instead of crappy bolt on sliders. Therfor the extra bracing from the sliders/slider plates handles the center of the truck pretty well. The center-forward of the truck frame is also pretty thick, and also has all the crossmembers so its not a problem that its C-channel still.

 

Well I'm going to disagree because I've seen it firsthand. You might get away with a 3/4 box in(front seat to rear)but the frame is still gonna flex in the hardened areas and you will get cracks. There's a couple fabricators out there in the off-road racing environments on YouTube you can check it out and they mentioned the same thing. Dirt lifestyle. Nate in fact just put out a video discussing that very fact. And it was on a Toyota Tacoma.

 

So you watch one of his videos and that is the only answer to plating in the frame? Earlier I was going to say something smart about you probably watching his last video. There's literally thousands of dudes who do the same Dirt King/Dmz/etc frame boxing in kit with no problems, and beat the shit out of their rig more than most people on here. Us guys who run the trucks hard will do more damage not plating the frame in, than plating the frame and I guess have it crack elsewhere as you/Youtubers say it will.

 

Source or GTFO.

 

You and us guys are the brain trust. Cool story. Too bad you can't have a normal discussion but talk down pound your chest like a gorilla. I'm not gonna even waste my time.

 

thanks for the laugh. i like irony.

 

Idk, about the frontier body and bed moving around, but i was following a lifted gen3 trd last week on my crappy road laced with big deep potholes. You should watched that truck body hop around every time the driver tried to speed up. I could hear that tacoma from inside my cab sounding like it was going to break apart.