Front drive shaft update

[Cindyandmike2668]

Here is what my dealers service department just sent over:
There aren’t any actual bulletins with coverage highlighted under your vin but they do mention the prop shaft noise in what they call a team tip. It appears your machine was produced before the fix came out and it references changing the front prop shaft and installing a service boot in between the two shafts. It states the new front shaft is compatible with the existing rear shaft. Other than that there’s no updates showing.

 

[jawshxpedition740]

Well I have the updated prop shaft and rubber boot and its just as bad as before if not worse.

 

[Curly411]

Here is what my dealers service department just sent over:
There aren’t any actual bulletins with coverage highlighted under your vin but they do mention the prop shaft noise in what they call a team tip. It appears your machine was produced before the fix came out and it references changing the front prop shaft and installing a service boot in between the two shafts. It states the new front shaft is compatible with the existing rear shaft. Other than that there’s no updates showing.

I noticed vibration in my front drive shaft also, i looked at the park description in the microfish, the picture they show the drive shift is not in phase.Could this be the problem?I will keep you posted

 

[sscappaticci68]

Replace the drive system with SandCraft .
Driveline and Carrier Bearing Combo!
It stops all vibration using a true phased and balanced driveline.

SandCraft Polaris Xpedition Driveline and Carrier Bearing Kit

Enhance your UTV's performance with the SandCraft Polaris Xpedition Driveline and Carrier Bearing Kit. Designed for durability, it features upgraded strength and eliminates vibration for a smooth ride.

www.utvsource.com

 

[DogRunner2]

I can live with it till the stock one wears out for the price of the Sandcraft, lol.

 

[sscappaticci68]

I can live with it till the stock one wears out for the price of the Sandcraft, lol.

I understand these things get expensive.

 

[Pirate]

Thinking of driveshafts and remembering the necessity of a driveshaft requiring proper phasing...
Here is the Polaris parts page for the Xpedition front driveshaft.

Look closely and you will see that the U-joints are not aligned.
Here is a document on Driveshaft Phasing:

Note in the article that the U-joints must be phased correctly or the driveshaft is going to wobble or do other destructive things to itself.
This is one of the great things about CV-joint driveshafts. There are no components that have to be phased. The CV joint design elminates
that need.

Look at the graphic on the Polaris driveshaft and then at the properly phased driveshaft.
See any differences?

Here is a kinda dark photo of the Turner Cycles CV driveshaft for a 2-seat Xpedition. They also make them for the 4-seat models.
Notice there are no U-joints that must be phased. Just CV joints:

I believe this is the issue. I have seen one YouTube video of an Xpedition front driveshaft wobbling like crazy.
That is not a phased driveshaft!
Pirate

 

[EricB]

Here is what my dealers service department just sent over:
There aren’t any actual bulletins with coverage highlighted under your vin but they do mention the prop shaft noise in what they call a team tip. It appears your machine was produced before the fix came out and it references changing the front prop shaft and installing a service boot in between the two shafts. It states the new front shaft is compatible with the existing rear shaft. Other than that there’s no updates showing.

So when did the fix come out?

 

[JTBarlow]

Thinking of driveshafts and remembering the necessity of a driveshaft requiring proper phasing...
Here is the Polaris parts page for the Xpedition front driveshaft.
View attachment 7734
Look closely and you will see that the U-joints are not aligned.
Here is a document on Driveshaft Phasing:
View attachment 7732
Note in the article that the U-joints must be phased correctly or the driveshaft is going to wobble or do other destructive things to itself.
This is one of the great things about CV-joint driveshafts. There are no components that have to be phased. The CV joint design elminates
that need.

Look at the graphic on the Polaris driveshaft and then at the properly phased driveshaft.
See any differences?

Here is a kinda dark photo of the Turner Cycles CV driveshaft for a 2-seat Xpedition. They also make them for the 4-seat models.
Notice there are no U-joints that must be phased. Just CV joints:
View attachment 7735
I believe this is the issue. I have seen one YouTube video of an Xpedition front driveshaft wobbling like crazy.
That is not a phased driveshaft!
Pirate

I like the idea of the Turner Cycles CV shaft, but they state right on their website that they’re not good for high speed.
And I can confirm the phasing on Polaris’ OEM driveshaft. It’s keyed in the splines, so you can’t properly phase it without grinding out the splines. On the majority of machines, you don’t feel the vibration very much, but we’ve also come across machines with bowed shafts, straight from the factory. On those ones, the vibrations were definitely noticeable.
One thing to note is that the driveshaft rotates regardless of whether you’re in 2wd or 4WD. So if you don’t feel a particular vibration at speed in 2wd, there’s unlikely a problem with the driveshaft. While there can be a little more vibration by loading the shaft, most vibration is coming from the front differential, and the way it operates.