So, it appears that I might be the first on the forum to upgrade their propshaft/driveshaft carrier using the JXB Performance Driveshaft Carrier. If not the first to upgrade, I’m certainly the first to make a post about it as can’t find anything else on this forum.

If anyone is wondering what I’m on about, the JXB carrier is a bespoke solution that will sit around the bearing on the propshaft, and aims to reduce excess movement of the shaft through a more robust carrier, whilst providing better damping to minimise vibration. Installation does not require the propshaft to be removed, and the carrier can be fitted in about 90 mins with some basic tools. Here it is installed on my truck:

great write up and possibly timely for me. I have just noticed a very slight vibration through the dvr seat on my 130k miler. What were your symptoms before fixing?

I’ve noticed two symptoms that are related but not the same.

1. I’ve been getting a droning noise that directly relates to vehicle speed. It happens in gear and also in neutral so definitely driveline and not engine/gearbox. I narrowed it down to under the centre armrest area so assumed it was the bearing. When installing the JXB I was able to get to the point where I could spin the bearing freely as the old carrier and rubber damping was removed. My bearing is absolutely dead: it’s loose, and is no longer smooth to spin. One can never be 100% with these things but I’d be amazed if this wasn’t the source of the droning sound.
2. I also have been experiencing intermittent vibration through the cabin. I can feel it through my seat and also the steering wheel. I’ve had the wheel balance checked and def not that. It was intermittent as it happened most commonly on a long steady cruise. It would sometimes be fine and smooth, and then the vibration would start. I think it was the prop moving excessively in the old carrier as the rubber had perished too far to hold it steady. It makes sense that this happens on a steady cruise as, once it gets going it would keep going. Whereas on a town drive where always speeding up and slowing down, there wouldn’t be a chance for the wobble to get going. I am optimistic that a new OEM bearing carrier would’ve solved this. However, I am more optimistic that the JXB solution would never allow this to happen as the rubber in the carrier is significantly more robust.

I hope this helps and good luck sorting yours… Andy

2010 4.4TDV8 Vogue SE in Santorini Black with Ivory interior
2017 Audi SQ5 3.0 V6T Quattro in Volcano Red
2001 Audi Allroad 2.5 TDI manual with low-range in Highland Green. Currently SORN whilst undergoing some serious restoration!

One final post to close this down from my side: I’ve now managed to replace the propshaft bearing. And, great news, I now have a silent running and very smooth driveline again.

If you wish to replace your own propshaft bearing, this is certainly achievable on the driveway. I managed to remove my propshaft just using my vehicle ramps on the rear wheels to get enough access underneath to work and not needing to remove the wheels either.

Once the exhaust is dropped down and heat shields removed (I advise also doing the front shield for better access to transfer case end of shaft), you just need to undo the 6 T12 Torx bolts on each end of the prop. I was able to get to all 6 using my ratchet set without needing to rotate the prop. Fiddly for the two least accessible bolts on the top, but easily achievable with patience.

With the prop off the vehicle, the hardest bit was getting the prop split into two pieces. I had to apply a lot of heat and then use a lump hammer and large punch to get the shaft to split. You will unlikely be able to achieve this without a very sturdy bench vice. However, once the prop was split it was easy to get the old bearing removed and new one installed.

I cut my bearing out of the rubber on the new carrier, mounted it within the JXB carrier and got everything installed back on the vehicle. Once complete, a thorough test drive both cross country and at healthy motorway speed confirmed no more droning and thankfully, no more vibration. If anything, the truck has never driven better in my ownership as very, very smooth driveline now, especially when coming off or going back on the power. I can only attribute that to the new bearing and the really nice JXB Carrier solution. I really would recommend this option of new bearing annd JXB carrier instead of wasting twice the money on a new prop.

For clarity, the bearing used was a Terrafirma TF2428. It seems good quality and only £25. Even if it only lasts me 20k miles, I can now replace for another £25 and reckon I could do the whole thing in 90 mins without rushing, now that my prop splines have been cleaned and greased!! Future me will almost certainly thank me for that if/when the time comes! Andy

2010 4.4TDV8 Vogue SE in Santorini Black with Ivory interior
2017 Audi SQ5 3.0 V6T Quattro in Volcano Red
2001 Audi Allroad 2.5 TDI manual with low-range in Highland Green. Currently SORN whilst undergoing some serious restoration!