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Old 07-03-2013, 07:29 PM
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Question about Greaseless Ball Joints

I just replaced my original ball joints on my '04 Sportsman 500 4x4 with OEM greaseless ball joints. Can you (Should You) grease polaris "greaseless ball joints"? My strut arm has grease zerks to grease the original ball joints.
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Old 07-03-2013, 08:08 PM
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Old 07-04-2013, 06:26 AM
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The original ball joints have a hole in the bottom of them to allow grease to get from the zerk in the bearing carrier to the ball joint. I don't think the replacement ones have this hole....making it impossible for grease to get from the zerk to the ball joint. At least that is how my EPI greaseless ones are.

Sean
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Old 07-04-2013, 03:28 PM
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The ball joints are not completely solid on the back. There is a larger opening on the back side compared to the original. It looks very similar to the image I have attached.

Thanks for the help.
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Question about Greaseless Ball Joints-ball-joint.jpg  
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Old 07-04-2013, 04:44 PM
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So I have an 2011 800 and the OEM ball joints part #7061158 is open in the back and will accept grease even though it is a greaseless unit. I replaced the originals as I am in the middle of a suspension/steering rebuild. The ball joints were in working order but upon removal I found no grease and a lot of dirt in the original units. So I was contemplating adding a zerk so it would be greaseable but came to the conclusion that it was unsafe to do so in that manner. See when I did a search for the ball joint removal guys were removing the balljoint retaining plate and using pressure from grease via a grease gun to pop the unit out. I feel much safer knowing the ball joint is being held in the strut by pressure and the retaining plate and not just by the retaining plate in the event the ball joint happens to get over greased through the zerk. But I will grease the ball joint under the dust boot using a needle adapter on the end of my grease gun in the hopes that it greases the unit and displaces dirt and water. Almost fogot before I press the new ball joint in I will fill the space above the ball joint with grease.
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