i took mine to full throttle power sports a guy name Dustin Robbins runs it. they told me it had to do with freeze plugs in the axle cups that started leaking. it fixed mine and another buddy of mines in a 17 xpt. if you give them a call they can tell you how they fix it. (256) 309-0200

 

Remove each axle, clean with Brake Cleaner, blow dry and then smear some silicone on the back of the splined hub and freeze plug.

Clean the axle splines, blow dry and reinsert axles. No more leaks.

 

I've been reading that the freeze plug is the problem. Can you remove the diff and pull the output hubs to get at the back side of the freeze plug? Maybe something a little more ridged like JB weld on the backside of the output hub?

 

You want JB Weld breaking off inside a diff housing?

I now have 500+ miles on my siliconed front diff

 

Silicone in mine, no leaks.

 

2018 rzr xp turbo with 266 miles on it , my front diff leaking to [emoji35][emoji35][emoji35]dropped it off today at shop , dealer ask do u have it in 4x4 a lot , I told not that much , he says u don’t want to drive in 4x4 a lot in it , whatever I used to have a 2016 900s had it in 4x4 mostly all the time and never had any issues with any thing leaking in that 900 , 22 grand leaking , what crap [emoji90]


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Junk.

I ended up pulling my axle and adding some silicone for the time being. I will order a bearing and seal kit and replace everything inside the diff.

When I was cleaning everything out, I noticed the plug in back of the output hub was loose and I could move it around a bit. I'm guessing thats what is leaking? Is it just a press fit that gets loose over time?

 

I had the same thing happen with my 2017 rock edition. It has a similar AWD to the turbo with the same axles. I had the hubs replaced under extended warranty and 400 miles later they started leaking again. Both times the plug in the hub was loose. I finally spent $1200 to get a set of hubs from Hawk Engineering. They are hardened and designed much better. Instead of a sleeve that connects the hubs, they have a pressed bearing between the hubs that is put on with red Loctite. I have about 700 miles on the Hawk Engineering hub and it has not leaked. The center bearing that connects the hubs also lets them turn independently where the sleeve would bind the hubs together. My friend Greybeard also has the Hawk Engineering hubs and has had no problems since he installed it. He tried the silicone and it started leaking after two days of rock crawling at Hidden Falls.

 

well I’ll see after the dealer replaces the diff and if it starts to leak again , I’ll look into hawk engineering, thanks for the tip


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Yep. Same here, mine started leaking at 400 miles. Cleaned it all up with brake cleaner, put a light bead in the cup. Then I pulled a vacuum on the vent line for 24 hours. Put it all back together. 1700 mikes later. No leaks. It’s too bad Polaris has such a stupid problem.

 

Mine started leaking this week. A 2018 xpt2 with 2500 miles. Hopefully, the dealer fixes it on warranty.


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HDextreme off-road also sells an upgrade kit. It used longer output hubs so they extend past the seal. The stock ones flex and are the same length as the seal causing leaks. I put their kit in mine and it has 2000 hard miles on it with no issues.


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HDextreme off-road also sells an upgrade kit. It used longer output hubs so they extend past the seal. The stock ones flex and are the same length as the seal causing leaks. I put their kit in mine and it has 2000 hard miles on it with no issues.


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Sorry to resurrect an old thread, but what all is included in their kit and approximate cost? I looked at their site and have sent them an email but I do see some "factory output hubs" in their clearance section. Are those just part of the upgrade kit or are those all I need?