Gearbox woes and help needed

[Ssaunders]

Hi all, I’m having issues and could do with some advice and help.
Basically I have a Corrado VR6 turbo that has been converted to a syncro it has a quaife 6 speed kit. I was giving it some beans and lost all drive and it sounded like a bag of nails but I could still select gears, I’m waiting for the box to be pulled and looked at. My first guess is the diff is fubar? If it is I was looking at sticking a quaife lsd in.
If it’s the diff what’s the chance the ring gear is still useable? If not where can I get a ring gear as I believe the VR is different to the 4 cylinder?
Having a quick look I can’t see any holes in the box but who knows, where can I get an empty box from? And what sort of money?
If it makes any difference it’s running 4 stud hubs not VR 5 stud. I’m sorry to ask so many questions as I didn’t do the conversion and am in the dark till my mechanic can pull the box, so I have no codes or anything.
Thanks for looking and any help you can provide.
Cheers
Steve

[Housey]

same ringgear as FWD.

[Ssaunders]

Hi, thanks for the reply so I can use a 02A VR6 diff ring gear?
Cheers
Steve

[Housey]

can’t find any different partnumbers in etka

[Ssaunders]

quote:

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Originally posted by Housey

can’t find any different partnumbers in etka

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thanks for looking.
cheers
steve

[Chris S]

It is more than likely to be the bevel gears in your transfer box that have shed at least a few teeth. []

[Ssaunders]

quote:

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Originally posted by Chris S

It is more than likely to be the bevel gears in your transfer box that have shed at least a few teeth. []

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Ok, thanks Chris. Sounds cheaper than a new diff? Would I not still have front drive though? What sort of money for a trans box and is there anyway to strengthen the gears, shot preening or something? i just need it to last a year till the haldex conversion and would hate to turn the boost down! []
Thanks
Steve

[Chris S]

If it is your transfer box then you need a VR6 Transfer box with 16/21 gear ratios, & not the 4 cylinder one with 20/21 ratios.

If it is the Differential then these are fitted in matched pairs (crown wheel & pinion)

[Ssaunders]

Hi Chris, thanks for this detail! I assumed that as it was a syncro mk2 donor and would need the mk2 transfer box but I see now that it must have been the mk3 gearbox as the VR bell housing is different. How would that effect the rear diff? Are there any codes I need to look for?
Where would I source one? The 4 cylinder ones are difficult enough!
I may just have to look at haldex instead, I have been looking at the phirm for the conversion but that’s booking for next year!
Thanks again.
Steve

[Chris S]

The rear diff has to have a suitable (matched ) ratio to the transfer box so it has 21/16 for the VR6 & 20/21 for the 4 cylinder models, however the 4 cylinder transfer box will bolt up directly on to the VR6 Gearbox, & of course then the VR6 transfer box will fit onto the 4 cylinder Gearbox

VR6 Codes are
Gearbox Code VR6 – CSR
Rear Diff Code VR6 – CSS

Gearboxes on eBay.de here

http://www.ebay.de/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR2.TRC1.A0.H0.Xvr6+getriebe.TRS0&_nkw=vr6+getriebe&_sacat=0

[Ssaunders]

Hi Chris, my current hope is that when the conversion was done that they used the housing from a MK3 syncro and kept the 4 cylinder TB and rear diff.
i know i am taking the Mickey now but do you have the codes for the 4 cylinder TB and rear diff for comparison?
if your ever down Essex way look me up as i owe you a couple of beers!
cheers
steve

[Chris S]

The 4 Cylinder Rear Diff code is
G2 Syncro ARR
G3 Syncro CBX

To the best of my recollection the transfer box does not have the code stamped on it.

http://www.vwsyncro.co.uk/data/forums/topic.asp?TOPIC_ID=3002

[Ssaunders]

Thanks again Chris. So my thinking is identify which rear diff I have and that will determine which transfer box I need. As its a 4 stud conversion I’m leaning towards the 4 cylinder and I did speak to someone who had a couple £175 each. I will hold off until I’m 100%.
Cheers
Steve

[Ssaunders]

OK, quick update. It’s a blown diff that has also cracked the bell housing.
I have posted in wants for either bell housing or complete VR box.
Thanks for the help.
Steve

[Chris S]

Here is what is available on eBay

http://www.ebay.de/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.Xsyncro+vr6+getriebe.TRS0&_nkw=syncro+vr6+getriebe&_sacat=0

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