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Old 06-26-2010, 03:52 PM
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400 front axle problem

I'm new to this site. Lotsa good info! I tried the search functions but found no results I could use for this. My problem is; I have an 05 400, and I get a clicking sound from the front differential area when coasting on turns. I checked the cv joints and they're all tight. But, where the axle comes out of the differential case the axle will move up and down forward and back. I think the proper term would be "run out"...like maybe a bad bearing in the case??? I drained the oil and in the light it looked like dark metallic paint. does anyone know how much run out is okay on this? 1800 miles on the machine... Thanks, Jim
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Old 06-26-2010, 05:25 PM
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your cage is broke in the diff
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2001 500 H.O. Sportsman "Hoggwaller"
2in. lift,with HD ranger springs up front w/stock axles,2in. in the back
heel clicker
Warn 2500 puller outter
SS108's
29.5's Laws skinny/fat
rubber down custom intake
homemade exhaust snorkel
rad. relocated up top
chains on front & rear A arms
swaybar removed
working on quads for 12 yrs let me know if i can help
"Hold my beer and let me show you how to really f#%* shit up"
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Old 06-26-2010, 09:14 PM
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Welcome to the board!
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Old 06-26-2010, 09:34 PM
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Thanks guys. How difficult is that to repair? I see at the powersports warehouse the cage is about $168. I can see it will be pricey by the time I get a manual, gaskets/seals, oil and probably bearings. Anyone have an idea what would cause it to break? Don't wanna do that again!
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Old 06-27-2010, 01:01 AM
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its just a popos weak spot
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The Kid
2001 500 H.O. Sportsman "Hoggwaller"
2in. lift,with HD ranger springs up front w/stock axles,2in. in the back
heel clicker
Warn 2500 puller outter
SS108's
29.5's Laws skinny/fat
rubber down custom intake
homemade exhaust snorkel
rad. relocated up top
chains on front & rear A arms
swaybar removed
working on quads for 12 yrs let me know if i can help
"Hold my beer and let me show you how to really f#%* shit up"
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Old 06-29-2010, 08:31 PM
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I'm pretty sure I have this same problem. How hard would this be to repair? Please keep me updated on this. I jacked mine up in the front and the axles could move around out of the diff and I think that is also my problem. What all parts would I need, I have no manual?

Also, several of my friends have '01's to '04's and the said they are pretty sure theirs do this (and have for a while). What kind of problems would happen if I kept driving with this problem?
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Old 06-29-2010, 09:39 PM
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NickS,
Do a search on christpuncher, he did a thread where you can find the cage and related parts at the John Deere Equipment dealer for about half the price of the Polaris dealer. I think the John Deere units are made by Bombardier (CanAm) and they use the same front gear case as the Polaris. As far as running it that way, I'd say you're taking a chance on self destruct for the gear case at any time. If a single part breaks and circulates with the oil into the gears or assorted and sundry other stuff and.....
I've probably put a hundred or so miles on mine with the clicking sound with no catastophic results, but now that I know what it is, I'll park it until it's fixed. I'll be tearing into mine in the comming days and will post my findings here. Probably so you can learn by my mistakes. Jim
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Old 06-30-2010, 03:45 AM
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Ok, thanks. I've never worked on one before, but I may try. Let me know the difficulty. Sucks because I just bought this atv less than a week ago ('05 sportsman 400 4x4). It only has about 700 miles in it and 80 hrs. I gave $3000 for it, and don't know much about them, so didn't think much about it during test drive. Just browsing through the threads and found this one luckily because like I said, all of my friends said they think theirs do it too. So now I know the problem after looking around and seeing how common it is. Please keep this thread updated (maybe even with some pictures )
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Old 07-01-2010, 04:52 PM
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On a scale from 1-10 I would rate the difficulty about a 4. With basic tools and a manual a handy person can re and re this in about 2-3 hrs! Takes me about 45 minutes now! Take it apart first before ordering anything I'll bet there isn't anything wrong with it! While you got it out change the u-joints on the front prop shaft, I bet that's where your noise is coming from!!

Last edited by christpuncher; 07-01-2010 at 04:55 PM.
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Old 07-01-2010, 09:05 PM
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CP
I hope you are right. I aready changed the ujoints and checked/greased the yokes. Noise is still there and the output to the CV's have a lot more slop in them than my brother's. But I think you got the right idea on tear it down and check. I think what happened to mine is; I let a friend of my son (teenager)try it out, and he buried it in a mud hole in 2wd, and I think he engaged the front end under power. That's when the noise started.
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