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post #1 of 7 Old July 18th, 2019, 11:48 AM Thread Starter
 
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Canada Front diff issues

Anybody have any issues with their front diff making a lot of noise?
In 2wd and on the throttle there is a jingling/rattling sound comming from the front end, very load and annoying, almost like bolts in a mason jar. When I put it in 4wd the sound goes away but there is a loud drone that I can feel and hear that comes from the front diff only under power.

Took my unit to Polaris but they didn't even look at it. Something must be happening as the rear output seal on the transmission had to be replaced and the yolk nut had to be tightened. (This took them almost 40 days to do)

They would not look into the front end noise, just stated that they tested it and my complaint is unfounded. I reset my trip odo when I dropped it off. It had .9 of a KM on it.

Has anyone had this problem and actually had it diagnosed, or have any experience with this front diff that may have some ideas before I tear it apart?
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post #2 of 7 Old July 19th, 2019, 11:21 PM
 
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These front diffs are pretty tough and hard to hurt. Only thing that will hurt them quickly is water on the fluid or a bad seal. As for the noise check the front drive shaft yoke and u joint at the front diff. I have went through 2 of them. The u joints are also a problem area as well as carrier bearing. Any of these can cause front drive line noise when not under load.
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post #3 of 7 Old July 26th, 2019, 06:00 AM
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Re: Front diff issues

Front axle inboard spline could be worn out, you can grab the center shaft bar try to move it and see if there is any play on the inboard joint.



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post #4 of 7 Old July 26th, 2019, 11:21 AM
 
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Re: Front diff issues

Its very odd that the noise goes away in 4WD. Generally I would suspect the pinon bearing or carrier bearing but since it goes away in 4wd it has me thinking something to do with sprague cage. Possibly broken H Clips for the rollers.

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post #5 of 7 Old July 26th, 2019, 06:14 PM Thread Starter
 
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Long story short, the dealership wanted to take a 2nd look. Dropped it off wednsday and they called today and said the prop shaft was the issue. When i get back to town next week i will see if that was it
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post #6 of 7 Old August 3rd, 2019, 05:07 AM
 
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The drive shafts are a big issue in the rs1. Normally the front shaft yoke on the drive shaft spreads and will bust or the yoke that goes into the front diff gets all wallowed. My dealership I use has had to actually replace 2 frames under extended warranty because when the drive shafts broke up by the diff it beat the hell out of the frames.
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post #7 of 7 Old Today, 01:25 PM
 
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Re: Front diff issues

Quote:
Originally Posted by Johnsmack View Post
Long story short, the dealership wanted to take a 2nd look. Dropped it off wednsday and they called today and said the prop shaft was the issue. When i get back to town next week i will see if that was it
That's very possible, I had my front prop shaft bend right at the yoke and it created quite a vibration and tore up a couple Pinon bearings before I caught it.

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