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			My track arm was making alot of noise in the front.   I was thinking of replacing it  but thought I would try a little grease first. They are sealed so no  way to grease them. But  I  went to local parts store and found a needle that goes on my grease gun and injected some grease through  the boots they have been silent now for the last 2 yeas. Might wana try it only took about 10 mins didn't even take the wheel off.
		 
		
		
		
		
		
		
		
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