221 replies to this topic

[dattoman]

Yes

But he now has a diff I believe
Does yours have the detroit locker centre though ?

[makka]

Yes

But he now has a diff I believe
Does yours have the detroit locker centre though ?

I wish it had a detroit locker!

need a diff for that sedan your going to build?

[dattoman]

No I'm just going to use the one I bought off Gav (2 fly)
Its a XY - I believe - sailsbury type with a spool and 3.55 gears
Setup for Commodore pattern and disc brakes

I still need to find a diff for the SS hatch with 385 cubes of Chev goodness but I'll probably go for the 9" variety there

But...... I know a guy whos fitting a big sailsbury into his hatch and needs a detroit if you know where to find one

[makka]

No I'm just going to use the one I bought off Gav (2 fly)
Its a XY - I believe - sailsbury type with a spool and 3.55 gears
Setup for Commodore pattern and disc brakes

I still need to find a diff for the SS hatch with 385 cubes of Chev goodness but I'll probably go for the 9" variety there

But...... I know a guy whos fitting a big sailsbury into his hatch and needs a detroit if you know where to find one

the XY diff will be a BW i would assume

is that welby that needs the DL?

[dattoman]

I know nothing about XY diffs... just what I was told
Happy to have someone confirm what it is
Just need Tinks to take pics..... my pic taking skills suck balls

And yes the DL is for Marcus Aurelius Welbius

[ls2lxhatch]

From the other thread.

I was told by Phil Taverna Chassis that the standard LX torana diff is 56.5 inches or 1435mm. I measured by original LX diff as 1438mm.

For a road car as long as you do not increase the track by more than 25mm then you will not have a problem.

LX Torana
SL Front 1394mm
SL Rear 1372mm

SS Front 1405mm
SS Rear 1382mm

[dattoman]

If anyone actually checks it at rego
Never seen one checked before

[ls2lxhatch]

If the modifications to the car require engineering then you can expect to have the track measured. In my opinion it is not worth the risk. On an unflared LX Torana staying within the track limits puts the wheels in the centre of the guard anyhow.

[Toranamat69]

And When you do an engineered diff swap in qld, the track measurement is based on the conversion diff, not the Torana one anyway.

M@

[ls2lxhatch]

And When you do an engineered diff swap in qld, the track measurement is based on the conversion diff, not the Torana one anyway.

M@

I have heard this before but it does not make any sense. What does the track of the donor vehicle have to do with anything? There must be other criteria.

Track can be altered by changing the axles, rims or brakes.

The WA requirements are in the National Code of Practice page 17.
http://www.dotars.go...ng_3Feb2006.pdf

The vehicle modification application form has questions covering the front and rear track before and after modification. You can expect the track to be checked before a permit will be issued for diff or brake conversions.
http://www.dpi.wa.go...orm_prodveh.pdf

[Toranamat69]

I don't make the rules, I just try to learn how to exploit them - the only other criteria was your wheels can't rub on the body work or suspension and the car must maintain reasondable roadholding. You can narrow or widen your track as much as you want if you do it by shortening or lengthening your diffhousing and not by wheel offset.(provided you meet those other 2 criteria above and get it engineered).
The idea is to prevent too much side loading on the wheel bearings and axles.

Saying all that, qld is in the process of bringing in the new national regs - My compliance guy tells me they are both in effect at the moment.

M@