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legalities of wider diffs
Posted: Tue Mar 22, 2005 7:32 pm
by hypo
just wonder wots the legal stance is on putting wider diffs under a car...
i was under the impression that track width was only allowed 2 increase by 25mm ??
if wider diffs r fitted and the rig is engineered does it then make them legal or does the 25mm adr rule come into voiding the engineers cert just like the tyre argument on enginneers papers ????
Posted: Tue Mar 22, 2005 8:33 pm
by hotrod4x4
in NSW
it goes by the factory specs on the diff u install
"possibly" for commercial vehicles only?? not too sure
but for 4wd's , def. goes by the fitted diff , not the vehicle specs
Posted: Tue Mar 22, 2005 8:49 pm
by hypo
ok cool so if i were 2 put 80 series diffs under a zook, as long as i got it engineered and had the wheels and tyres covered by guards or flares it should pass ??????
Posted: Tue Mar 22, 2005 9:04 pm
by hotrod4x4
yep , just get the tyres covered and then engineer the swap
Posted: Wed Mar 23, 2005 7:56 am
by slosh
I thought you'd be the last person to ask this question hypo, seeing as you've already done it once.
Posted: Wed Mar 23, 2005 3:23 pm
by MEX
Posted: Wed Mar 23, 2005 4:57 pm
by Nev62
Gee, I did'nt realise you northen guys had so many regs. I thought there was just one that went something like this.....
NO.
Posted: Wed Mar 23, 2005 5:40 pm
by Shadow
Nev62 wrote:Gee, I did'nt realise you northen guys had so many regs. I thought there was just one that went something like this.....
NO.
if you read the 30 or so pages
that pretty much sums it up
Posted: Wed Mar 23, 2005 6:50 pm
by Dee
hit the nail on the head...
it shits me to tears.... damn qld...
Posted: Wed Mar 23, 2005 10:43 pm
by Mick_n_Sal
There appears to be a loophole -
They allow the replacement of diff housings etc.
They do NOT specifically state that the width of the assembly be the same as original housing.
They state that track width can only be increased by up to 50mm with beam axles on 4x4s
So, if one took wider axle assemblies, fitted them with wheels with up to 100% backspacing - the centre track requirements could still be fulfilled. ( none of this takes into account increased wheel bearing loads etc )
Just a thought .....
