chassis cutting

Post by **AcTioN13** » Wed Mar 26, 2008 4:33 pm

Hey all, just wondering what the legalities of cutting the rear chassis on my hilux down to near the shackle mounts on the rear?

Would doing so require engineering? and would it attract unwanted attention?

Cheers
Jack

Post by **v6hilux** » Wed Mar 26, 2008 5:06 pm

I cant see an issue with it. As long as you de-bur and paint it.

Cab Chassis's are legal with lights and guards over the wheels with no tray.

You will find the extended parts are there for accessories support. EG: tow bar, weight distribution in a tray!

Post by **nastytroll** » Wed Mar 26, 2008 5:49 pm

if in qld it falls under H4 code.

Post by **AcTioN13** » Wed Mar 26, 2008 6:01 pm

whats h4 code?

Post by **PJ.zook** » Wed Mar 26, 2008 6:37 pm

Im pretty sure you are allowed to cut/weld chassis but only if its infront of the foremost suspension mount on the front of the car, and behind the rearmost suspension mount on the rear, so you should be ok.

Post by **AcTioN13** » Wed Mar 26, 2008 6:40 pm

sounds good to me. that will shorten the rear end by 500mm when that big bloody tray gets sold

Post by **nastytroll** » Wed Mar 26, 2008 8:02 pm

H4 is a generic non load bearing modification, from the heavy code but is still applicable due to the full chassis.

Post by **AcTioN13** » Wed Mar 26, 2008 8:51 pm

so meaning it is legal to do as it is a non load bearing section of chassis?

Post by **nastytroll** » Wed Mar 26, 2008 9:20 pm

yes but consult your mod plater to find out if there is a specific way he wants it done.

I cut 210mm from the rear of my GQ ute n moved the original cross member forward n rewelded it back in. I had no problem getting mine approoved once I found what code was applicable.

There are specific codes for engine/gearbox cross members, chassis lengthening between wheels (wheel base extensions), and suspension mounts. None of those codes are related as they are not specific to cutting off overhang.

H4 is a generic, non specific, non load bearing modification.

Thats the problem I had at the time, it was not listed as a specific mod so I had to identify the code.

This only aplies if you are in Qld though, in other states refer to your engineer.

Post by **v6hilux** » Wed Mar 26, 2008 9:49 pm

I guess this H4 mod certification is a requirement in the same context as changing a 3 seater ute with bench seat and 3 belts to a 2 seater ute with buckets and console, less one seatbelt. I say this as you have altered the load rating for the remaining 6 bolts that secure the tray as opposed to the original 8 bolts.

Post by **nastytroll** » Wed Mar 26, 2008 9:54 pm

I think it was to certify the original chassis was still structurally sound n mod was done in a profesional manor.

The mod slip states what was done n how far the chassis was cut.

Post by **v6hilux** » Wed Mar 26, 2008 10:29 pm

nastytroll wrote:The mod slip states what was done n how far the chassis was cut.

Then it should have a new adjusted overall load rating and minimum bolt requirements for the remaining 6 tray mounting brackets????????

With 2 less chassis tray mounting brackets, I assume the possibility of the tray, when fully loaded per original spec, could come loose in the event of a sudden stop into a rock wall, squashing the vehicle occupants against the dash board??????

I say this in relation to a single cab Hilux.

Post by **sloshy** » Wed Mar 26, 2008 11:05 pm

Been through all this crap with mod platers and engineers

Any form of mods to the chassis in QLD has to be engineered =$$
(to be 100% legit)

Post by **Rascal** » Thu Mar 27, 2008 12:11 am

Have a read here,
http://www.infrastructure.gov.au/roads/ ... b_06_h.pdf

Post by **shakes** » Thu Mar 27, 2008 10:18 am

when I spoke to an engineer regarding this nearly 2 yrs ago now I was not allowed to touch the chasis within 300mm or similar of the coil hat's, I also had to fishplate the chassis and reweld the original rear crossmember back in.

look it up before you go choppy choppy, don't listen to random internet advice

Post by **AcTioN13** » Thu Mar 27, 2008 3:47 pm

any reccomendations of where to look? or should i be trying to call engineers who would touch a 4wd?

Post by **shakes** » Thu Mar 27, 2008 4:06 pm

http://www.vicroads.vic.gov.au/NR/rdonl ... eb2008.pdf

choose someone

I used/using Bill Malkoutzis

not cheap

Post by **AcTioN13** » Thu Mar 27, 2008 4:36 pm

cheers for the info mate

Post by **Corgie Carrier** » Thu Apr 10, 2008 9:29 pm

shakes wrote:http://www.vicroads.vic.gov.au/NR/rdonl ... eb2008.pdf

choose someone I used/using Bill Malkoutzis

not cheap

What did you have to use him for?

Post by **tna racing** » Fri Apr 11, 2008 12:51 am

Corgie Carrier wrote:
shakes wrote:http://www.vicroads.vic.gov.au/NR/rdonl ... eb2008.pdf

choose someone I used/using Bill Malkoutzis

not cheap
What did you have to use him for?

G'day neale. they have to be rwc and engineerd for chassie cutting

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