MK4 Bora 4Motion Tail shaft / Prop Shaft parts

[beale187]

that's great news across the board mate.

So do you think the flange bolts holes at 10.5mm were to mirror OE spec? Or do you think it was just sh*t chinese quality manufacturing?

Also good news on the JXB stuff, although I assumed they would be the same as they share the same part numbers.

Always been curious on the Darkside bung. Great (by great I mean cheaper) alternative to the HPA switchable controller. Reliability of the haldex clutch discs has always been my concern with it I guess.

[NAANI?4Motion]

[NAANI?4Motion]

that's great news across the board mate.

So do you think the flange bolts holes at 10.5mm were to mirror OE spec? Or do you think it was just sh*t chinese quality manufacturing?

Also good news on the JXB stuff, although I assumed they would be the same as they share the same part numbers.

Always been curious on the Darkside bung. Great (by great I mean cheaper) alternative to the HPA switchable controller. Reliability of the haldex clutch discs has always been my concern with it I guess.

Hey mate.
The bolt hole centres in the coupling where all on point bar one single hole.
This tells me that the production quality is lacking in quality control and tolerances.
So yeah man, average Chinese quality is my definitive call on this.
I would love to have the spare money to purchase an oem item and check its fitment vs the aftermarket china replacement part..

[NAANI?4Motion]

Also a word of warning for the Darkside bung;
The O-ring they supplied was the wrong diameter and also the wrong thickness FOR THEIR OWN PART!
I have been in contact with them about this issue fyi.
Please see above photos for reference

[NAANI?4Motion]

Also fyi;
I used my old passenger front cv axle bolts to bolt the coupling to the haldex flange because one of the oem bolts had sheared off when I first drove the car and I had to drill it and easy-out the bastard.
The cv shaft bolts needed 4 thread's cut off because they're longer and would touch the haldex case.
I used some big flat washers with these bolts because the oem had split washers and the cv bolts did not and that's all I had on hand..

[NAANI?4Motion]

To install the 50/50 bung, I had to remove all four rear cradle bolts and let it drop as far as it could with all the arms and axles still connected.
This gives just enough room to get a tool up above the haldex pump controller to remove and reinstall the bung and circlip.

[arek_p]

Did you replace the prop shaft flexible disc / donut at the front as well?
How did you stop the prop shaft from spinning?

I tried doing this when I had the gear box out but gave up as me and a mate couldn't stop prop shaft from spinning and access to the bolts was limited.

[NAANI?4Motion]

Did you replace the prop shaft flexible disc / donut at the front as well?
How did you stop the prop shaft from spinning?

I tried doing this when I had the gear box out but gave up as me and a mate couldn't stop prop shaft from spinning and access to the bolts was limited.

Hey mate, no, the front coupling disc was still in relatively good condition.
I stopped the tail shaft spinning by putting the car in gear...that's not much help to you if you have the box out though

[toneytone]

All in and running lads!!!

Firstly, the tailshaft-haldex coupling…it lined up perfect to the tailshaft, BUT….I did have to drill out the three coupling-haldex flange bolt holes, because the quality of China parts just aren’t made to a very high standard of quality and the centres were 0.5mm off and one bolt wouldn’t line up perfectly with the haldex thread. Re drilled the three holes from 10.5mm to 11mm and it went on perfectly.

I also successfully installed a JXB performance centre bearing carrier and confirmed with the owner/operator of JXB (for the first time, no one has tried this yet) that his kit for mk4 R32 (golf) works on a bora 2.8 4motion…and so he will be updating his website and products across the board to now accommodate this chassis in his lineup.

Also, while I was under the car all day, I dropped the rear subframe and also installed a Darkside Developments 50/50 haldex bung and serviced the haldex.

It drives quite differently now and the difference was immediately apparent when hard launching.
I will upload photos later today ✌

Hi !

Do I understand correctly that you‘ve managed to install Golf MK5 (e.g R32) Haldex Coupling on an Golf MK4 Haldex unit?

And did I understand correctly that you‘ve could it bought directly as a spare part from an manufacturer like Febi etc. but was, let’s say a bit fooled by Chinese Product Descriptions in the first place and went on and it fit anyway?

This is some great news!

One more:

You mentioned some washers and too long bolts. Is this always necessary or just for you because one bolt got shot?
Thank you very much for trying and telling us here!
Regards from Germany! 🇩🇪

[arek_p]

@NAANI?4Motion, I'm currently struggling to replace the front flex disc and if I need to drop the prop shaft, may considering also doing the rear.
The link to alibaba you posted seems to be the front flex disc.
Do you remember the listing where you bought yours?

[arek_p]

Also, how tight did you do up the 10mm bolts connecting the flex disc to prop shaft? I can't find it in the Bentley manual. There's not much on the web. I've seen 40Nm + 45° and 50Nm + 90°.

[beale187]

I'll just leave this here for OEM part numbers. Febi Bilstien and SWAG still make these.

For the front Disc - Febi Bilstein 19528 / SWAG 30919528



For the rear flex disc - Febi Bilstein 40922 / SWAG 30919526

[beale187]

And I'll drop this here also. flex disc bolts are 60nM

[arek_p]

Thanks @beale187 - Febi Bilstein 19528 is 400 pounds plus shipping

[beale187]

Thanks @beale187 - Febi Bilstein 19528 is 400 pounds plus shipping

You're not looking in the right spots then. Daniele and Paul at @ Vagparts are great to deal with - any questions just him them up.
19528 - Febi Bilstein Cardan Shaft Flexi-Disc– VAGPARTS Australia

Alternatively. Cars245 - prices are in USD though
Joint, propshaft FEBI BILSTEIN 19528. Buy online at Cars245