I don't know the specifics of the problems they're having but count yourself lucky man. A guy on a recent ride with us knocked a window in the rear dif on his 900. Hopefully your case isn't damaged at least.

 

first this is starting to show up

 

1400miles no problems....

 

i have 225 miles on my 12 rzr s le , the pinion shaft came out the case!!!! only 2 months old polairs covered it with a new one! thank god. you know its good when the tech at the dealer says "holy shit. get the fork lift"

 

I have a pretty loud clanking noise in mine also. Going to change the oil this weekend. Not too happy about the way it sounds. It's only really noticeable when going slow on decell down hills or when backing up in reverse. I noticed it more when I put aftermarket axles on (Highlifter) but I removed them and inspected and re-installed them. I used liberal anounts of anti-seize on the splines and made sure the axles were seated and locked in tight. CV's are super tight also still. I know the noise is inside the case and not on the axles or drive shaft.

 

Its getting torn down this week hopefully just some bearings that my local bearing place can get for me. This xp has been through hell the koh race left its mark big time.

 

If you get into it and it is more then just bearings, My buddy has a complete assembly (2012 XP 900 LE) that he just swapped out. It only had like 350-400 miles on it. BUT the housing is cracked due to him bottoming out! The internals are perfect though.

 

Guys, I build more diffs than most in the country I think. Polaris pinion nuts DO back off if not done right. If you hear a clunking in the diff, STOP riding it! It probably has a pinion nut backing off. I find the pinion nut loose on MANY diffs that come in when I remove the pinion to put in the HPD HD case.

We can rebuild stock diffs. Install your ring and pinion in the HPD HD diff case. Or, I usually stock new stuff if you have already torn up the diff.

Get with me if you need any of our services.

 

Is there a simple way to check the nut without completely disassymbling the tranny? Also what is the HPD HD Case?

 

this thread is in the XP forum... is it a XP transmission problem?

 

the HPD case is for the 800 rear differential,,, not the 900 transmission.

 

Let me rephrase comming from tranny in my xp where the axle shafts come into the housing with a fair bit of slop.

 

Mine has a good bit too..has since day one..I would have never known there was play if I hadn't have changed the axles..I've had no issues from it. Ive found no specs for side to side play in the manual. Its not like a typical diff..its a helical gear that has roller bearing on either side that sets in the case..these aren't preloaded roller bearings. Is the play causing you a problem? I personally decided it was normal for the design..

I should note mine makes no clunking noise during operation...only when snatching and axle out or popping one back in, or if the axles are out and I push/pull on the shaft any clunking noise during operation I'd be sure it wasn't brakes, CVs or something else before blaming the trans outpu..JMO

 

I noticed the play in mine aftger I put the axles in also. Mine does make a noise like a clunk but only on decel and when rocking my machine back and forth or when driving slow in reverse. Not sure how I should proceed on mine. Any ideas?

 

It's an internal prob the diff is full of metal shavings.

 

Gothcha..might have nothing to do with the output shaft end play..

 

Mine is at my dealer right now. I noticed the rear diff/trans leaking oil out of the case. They took it apart and there is not enough glue in between the case half. They told me this is the 4th or 5th one they have seen. I told them it is hard shifting too. They said to put Redline oil in it so it would shift better.

I have been a Polaris guy for 30+ years but, I'm loosing faith with this RZR and all my new snowmobile issues too.

Polaris, are you listening?

 

I bet it has something to do with the OP being a non driver. He needs to come to paola for some free lessons

 

Is that u Travis?

 

That's right

 

Well first off you gotta drive hard enought to break stuff once you master that I'll come play again.