How many Tritons have really bent their chassis??

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Re: How many Tritons have really bent their chassis??

Postby NowForThe5th on Sun Jun 19, 2016 9:00 pm

They do, snakesoup. That bracing won't do much, possibly make the problem even worse by removing any flex where it's located while not strengthening the weak point.

Here's a pic of one we had in the shop just recently for the dreaded red. It's been extended and reinforced but, instead of fishplating, they've made a truss and taken it much further forward. A much better way of doing it, IMO, and obviously essential in the case of a chassis/wheelbase extension.

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Re: How many Tritons have really bent their chassis??

Postby cookie_379 on Mon Jun 20, 2016 8:16 pm

Any one recommend an engineering/fab shops in Melbourne to do the chassis bracing?

I'm thinking of doing this soon as some extra insurance like you say triton_guru, before it does break!
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Re: How many Tritons have really bent their chassis??

Postby NowForThe5th on Mon Jun 20, 2016 9:47 pm

Why, cookie? That one in the pic has had the chassis extended, hence the need for bracing. If they're properly loaded and properly suspended then the chance of bending is pretty slim.
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Re: How many Tritons have really bent their chassis??

Postby cookie_379 on Tue Jun 21, 2016 4:10 pm

yeah ok fair enough.

I have a large dogbox/canopy setup on the back and yes i'm careful when loading it up but would like some added insurance knowing on a big trip I shouldn't have to worry about it.

would also like to put a roof top tent on it and other camping/4wd gear in the future
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Re: How many Tritons have really bent their chassis??

Postby moses on Wed Jun 22, 2016 4:54 pm

Look at this on eBay http://www.ebay.com.au/itm/152129741947

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Re: How many Tritons have really bent their chassis??

Postby triton_guru on Wed Jun 22, 2016 5:30 pm

I actually thought it had plates for the other side of the leaf spring mount under the cab?

Very clever idea by supwrior though because so many people worry about bent chassis and at that price its pretty cheap
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Re: How many Tritons have really bent their chassis??

Postby srb on Wed Jun 22, 2016 7:01 pm

snakesoup wrote:I thought they usually bent forward of the front spring hangers?? these plates in that photo look like they are bracing behind this point ?


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NowForThe5th wrote:They do, snakesoup. That bracing won't do much, possibly make the problem even worse by removing any flex where it's located while not strengthening the weak point.


Actually that's definitely not the case... Most bend or break just in front of the tray mounts, just like the one in the ebay link above that moses posted. I've never seen them bend in front of the spring hanger.

Those fish plates from Superior would certainly do the job. Its always going to move the forces to the next weak area but the chassis further up is a larger box section and can take it. I've got similar palates on my club cab but mine extend further up due to my tray mounts being 300mm further forward.
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Re: How many Tritons have really bent their chassis??

Postby NowForThe5th on Wed Jun 22, 2016 7:48 pm

You misunderstand, Steve. I was agreeing that they bend forward of the hangers, right behind the cab, just in front of the tray mounts. That one that I put up a picture of has bracing that goes way forward , right under the cab. What I was saying about that kit is that I think that it concentrates the increased strength too far back, on the curve over the axle, which is not where they break. The plating needs, IMHO, to come much further forward and continue into the straight section where it runs under the cab.
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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Wed Jun 22, 2016 7:55 pm

yes, as is what I was saying too


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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Wed Jun 22, 2016 8:32 pm

ok so Had a look at Moses link and yes that one is cracked rearward of the front spring hanger and as you said SRB right I front of the tray mount, so this is generally where they fail hey?


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Re: How many Tritons have really bent their chassis??

Postby srb on Wed Jun 22, 2016 8:35 pm

These plates do go forward past the front tray mounts, but yeah I agree they would be better if they went further up the chassis, past the spring hangers... maybe that's what those shorter plates are for? I still believe they'd do the job though.

On mine they go from the round cross member all the way up to nearly to the next cross member.
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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Wed Jun 22, 2016 9:06 pm

according to superior above, the small plates are optional if towing heavy loads etc that they can be fitted behind the rear shackle hangers


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Re: How many Tritons have really bent their chassis??

Postby 4wd26 on Wed Jun 22, 2016 9:30 pm

would only need them if stupidly going to put on rear bar with tyres hanging off the rear and then big ball weights on a MN with the extended towbar

still good insurance for the potential problem


I will be checking out the kit and legalities in QLD this week
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Re: How many Tritons have really bent their chassis??

Postby MilkmanDan on Fri Jun 24, 2016 6:18 am

ag9111 wrote:Tray backs that look like they are bent may not be.
Just badly fitted trays. The one I was looking at yesterday needed spacers on the rear mounts to lift it up.
Seen a few that look bent and often wondered


There seems to be a trend with fitters to make the trays level and not follow the profile of the rake in suspension. Not doing this once loads looks like the trays are going to tip off back of the car
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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Tue Jun 28, 2016 7:19 pm

well I've purchased one of the superior engineering chassis brace kits and it arrived today and I'm planning to fit it to my mn as a preventative and piece of mind as I want to keep the vehicle long term and intend on doing more remote travel in future and don't want this to happen to me, and after seeing first hand where and how they bend and crack " I have a bent / cracked ml " I feel this kit will be very effective for preventing this issue.
the kit was very well packaged and come with a big sticker and stubby holder
seems to be laser cut 4mm mild steel
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Re: How many Tritons have really bent their chassis??

Postby Cowboy Dave on Tue Jun 28, 2016 7:40 pm

I assume you need to be careful about the heat to the chassis when welding it on? Are you going DIY or getting expert input or something?

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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Wed Jun 29, 2016 8:48 am

yes cd that's right, you either have to be a very experienced welder, or get it done by a professional with appropriate tickets, preferably the latter.
they supply detailed instructions with the plates on exactly how to prep it and where to weld and how to finish/seal it afterwards
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Re: How many Tritons have really bent their chassis??

Postby viking shippy on Wed Jun 29, 2016 10:07 pm

Yes needs a gun welder and an engineering certificate....on chassis mods..


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Re: How many Tritons have really bent their chassis??

Postby snakesoup on Mon Dec 12, 2016 3:22 pm

hey SRB or any one else that's fitted fish plates to there chassis, I'm about to fit the kit that I bought for mine a while ago, I'm keen to hear about the methods used in re sealing/ painting the chassis again after the plates have been welded on, in particular the inside of the chassis where the the paint will obviously get burned off... or if anyone else has an idea to throw around then go for it ! cheers
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Re: How many Tritons have really bent their chassis??

Postby srb on Mon Dec 12, 2016 3:39 pm

Yeah just paint over the welds and any other bare surface you can get to. Then hit with a good dose of lanolin inside chassis rails.
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Re: How many Tritons have really bent their chassis??

Postby AshTritonMN on Thu Jan 11, 2018 7:41 pm

Hey snakesoup, How did it all go?
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Re: How many Tritons have really bent their chassis??

Postby Foo on Fri Mar 02, 2018 6:24 pm

The Triton has/had two homes of manufacturing = Spain and Thailand but Spanish steel is not as good in it's consistency as Thai steel, just like American alloy and Japanese alloy. American alloy is far more consistent in it's composition of magnesium ratio. ;)

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Re: How many Tritons have really bent their chassis??

Postby ag9111 on Fri Mar 02, 2018 7:43 pm

Australia only gets Thai manufctured utes be they hilux triton navara etc etc
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Re: How many Tritons have really bent their chassis??

Postby honie on Sat Mar 24, 2018 1:07 pm

NowForThe5th wrote:Maybe this will put it in perspective. I've lifted the text of a post on 4x4 Earth:

HI GUYS,
I repair bent 4x4 chassis for a living, so i probably shouldn't write this post as 80% of my work comes from the fitment of air bags.
But i feel i need to help out my Earth freinds so hear goes.
We buy these 4x4s ,load them to the gunnels then wack a fully loaded camper trailer(maybe another three tonne )on the towball and serprise! the ass and is sagging. Well i'll just wack some air bags in,takes the load of the springs they say.
So wear dose the load go ???
straight on to the chassis
I've had 4x4s dragged in to work from all parts of this wide brown land at huge cost to their owners due to over loading and air bags ,some bent beyond repair with the towbar at 30 deg. bellow parallel.
The utes are the worst (Hilux,Triton,Navara,Ranger-bt50)with their flimsy 2 mm thick rear chassis.How they have a three tonne towing cap. is beyond me.Had a ford ranger just the other day cracked near threw at the bump stops.
Patrols- while the chassis are fairly strong their weak point is their rear spring mounts,they bend up into the floorpan, busting brakelines on the way&bending the body.
Defenders- (don't get me started.what a pile of sh!t) while they might look strong they are not. bending & cracking at the shocker mounts.
Land Cruisers -haven't had a bent one yet (gess what i drive).

Hope this opens a can of worms , there's alot to be said about over loading 4x4s makeing dangerous& unroadworthy...air bags don't solve the problem-if you won't to carry five tonne buy a truck.
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Re: How many Tritons have really bent their chassis??

Postby honie on Sat Mar 24, 2018 1:08 pm

I have air bags on my MN but never put in anymore than 10 psi is that ok
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