Front diff input seal leaking

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Apr 8, 2016 | 09:13 AM

#21

old polaris tech

Polaris ATV Expert
Retired and loving it!

Joined: Jun 2008

Posts: 24,350

Likes: 44

From: North Texas

Quote:

Originally Posted by switzomatic

Make sure the shaft coming out of the diff doesn't have a groove worn in it from the seal. Had that issue with my '09 RZR. They replaced the whole thing once while under warranty and new seal started leaking not long after that. I bought an upgraded cover/seal/bearing kit off ebay and never had an issue after.

Problem is there are two bearings with a plastic spacer on that pinion gear/shaft which makes it prone to moving/wiggling around. The kit has a better cover with larger diam bearings and wider races which eliminate the slop caused with the factory set-up.

I've seen these updated covers for the 550/850 and 1000,but wonder if they would work for the earlier 500s,700s,800s,etc or if someone has them. Can't find a listing for them.

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Front diff input seal leaking-1958402_565221240242002_239794370_n.jpg

Dec 6, 2020 | 02:04 PM

#22

Alloutofdonuts

Weekend Warrior

Joined: Dec 2020

Posts: 1

Likes: 1

Quote:

Originally Posted by helmethair78

The pinion on my 05 700 started to leak a few weeks ago. I replaced the pinion bearing, seal, and installed a speedi-sleeve on the pinion shaft. Problem solved...
I bought the front diff bearing kit from ALL ***** Racing. It includes 3 bearings and all of the seals. The speedi sleeve is part# 99098. I did all of the work myself for about $85...

I know this thread is wicked old but I just wanted to say thanks for posting this info.

I was researching a fix for my 2012 Sportsman 800 front diff, output shaft seal leaking (even worse after I replaced it). I verified the Speedi-sleeve will work on my sportsman, is the same pn SKF99098(.985”/24.99mm measured mine to be sure). Also had the rebuild kit for the output shaft so I changed the bushing and 2 bearings. My old bushing had been consumed by about 25%, and the ball bearing had lot of play in it. Just waiting on the repair sleeve and hopefully I have enough Demand Drive Fluid left to refill it!