2011 550 front differential replace inner seal anyone done it - Polaris ATV Forum
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post #1 of 4 (permalink) Old 06-11-2019, 07:18 PM Thread Starter
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2011 550 front differential replace inner seal anyone done it

so i have a 2011 sportsman 550, in really good shape except i started noticing some grease/oil on the upper/inner cv boot/part that goes into the differential, it is the left front. so i was hoping it was grease leaking out of the boot but i took it off, boot is fine and there is differential fluid inside the splined female part of the differential, where the acle goes into with the clip. it appears to be coming from deep inside that hole.

there is a seal kit for like 60 bucks for the front differential but it looks like a complicated removal, has anyone on here ever done it? is it easier than it looks? is it worth it?

hunting season coming up fast, i need this thing working!

thanks for any help.
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post #2 of 4 (permalink) Old 06-11-2019, 09:01 PM
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There are no seals on the inside of the output hubs where the axles plug in that can leak oil. Its a solid metal socket. The seals (number 12 in the pic) is around the outside edge where the axle plugs in and can be peeled out and replace without even removing the differential from the machine if you're careful. It looks like Polaris doesn't sell just those seals alone though. You have to buy the entire seal "kit" for $65 just to get the $10 seal you need. I you can get the old one out without damaging it too much it can be matched up for a replacement at a bearing/seal distributor.
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post #3 of 4 (permalink) Old 06-11-2019, 09:25 PM Thread Starter
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thanks poleman, you are right. crap, i just ordered the 50 dollar kit. oh well. i looked at a video and you are right, it is solid so the fluid must be coming from that seal. there was so much oil inside thatsocket i made an assumption. i guess i will replace both

what is more irratating is i thought it was the axle so i ordered 2 all balls axles for like 340$ they will probably chargeme a 50% restocking fee
oh well,

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post #4 of 4 (permalink) Old 06-12-2019, 06:24 AM
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Quote:
Originally Posted by ROCKWIND1 View Post
thanks poleman, you are right. crap, i just ordered the 50 dollar kit. oh well. i looked at a video and you are right, it is solid so the fluid must be coming from that seal. there was so much oil inside thatsocket i made an assumption. i guess i will replace both

what is more irratating is i thought it was the axle so i ordered 2 all balls axles for like 340$ they will probably chargeme a 50% restocking fee
oh well,
I've got RM ATV's eastern warehouse near me and all the boys that work in there are riders too. They've been good to me but RMA does charge a premium.
Hope it works out for ya. Let us know how it goes.
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