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March 20, 2008 at 10:59 am #663

wolfyvr6
Member

Has anybody put mk3 vr6 syncro running gear into a mk2?
I have managed to source a complete set of mk3 vr syncro parts and it pretty much will all bolt up without any issues, however the propshaft on the vr bits the last (3rd) section that bolts onto the rear diff seems to be about 3 or 4 inches longer:

does anyone know if I can just swap the last section with the original prop? or would it be to weak?
any advice/suggestions are welcome

cheers

March 20, 2008 at 12:32 pm #4292

Chris S
Moderator

Yes, Just swap the last section over, you will need a different donut though, give me a shout with the drive flange sizes when you are ready.

March 20, 2008 at 3:13 pm #4293

wolfyvr6
Member

thanks Chris
once again your knowledge has be a great use!!

March 20, 2008 at 3:35 pm #4294

Chris S
Moderator

Originally when the propshaft was built by VW all three sections were balanced in one go after they had been bolted together, but now we are nearly 20 years on & seeing as how your rear section has already been removed and with the line up probably not marked, its not going to make very much difference, especially with the heavy balance weight (damper) on the rear donut which is the one to use btw.

March 20, 2008 at 5:47 pm #4295

wolfyvr6
Member

so take the donut off of the vr6 prop rear section and put onto the original mk2?
or do i need to source a fresh one?

March 20, 2008 at 10:09 pm #4299

Chris S
Moderator

No it wont fit, just email me the drive lug diameters & I will send you one that fits both sides

March 21, 2008 at 9:34 am #4302

wolfyvr6
Member

Chris

I’m not very well versed in all the parts names, do you have a picture of the bits you need me to measure. I’m not 100% sure on the bit the drive lugs are.[]

March 21, 2008 at 11:15 am #4304

Chris S
Moderator

On the rubber donut(s) there are 6 hollow pins that the fixing bolts go through, if you look closely you will see that 3 of the pins protrude out of each side, these protrusions engage with recesses in the propshaft, VC & gearbox drive flange, the actual drive is tranmsitted through these & not through the bolts which are only there to hold it all together. see photos

Early 18mm type VC

Later 25mm type VC

Donut drive lugs, yes there are 3 different diameters depending on theYear & Model

Prop shaft recesses

March 21, 2008 at 11:50 am #4305

wolfyvr6
Member

Thanks again Chris, I wish i could send u a usb memory stick and download your technical data!! but dont think we are that hi tech as a race yet []
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