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Discussion Starter #1
I have an 03 400ex and the front shocks are shot. My fourwheeler is alot lower than its supposed to be just because the shocks are getting so crappy. I want better shocks, so I was looking for some on ebay and I didn't know if 450r shocks would fit? I was looking at them because i know they would be better than regular 400ex shocks. I didn't know if my atv would sit weird or anything? And how do I know if i need a new rear shock? It seems fine but I just wondered.
 

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Agree^^^!!I'm gonna put 450r shocks on my 250x when I have the money.
 

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Discussion Starter #7
How do i know if i need a new rear shock? It looks like its in good condition but its just as old as the fronts. And is a 450r rear shock much different from a 400ex?
 

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Lift the back end of your quad up and drop it. Does it fall and settle smooth or is it a rough landing withsome bounce to it? The 450R rear shock is nothing impressive. I would personally see if the new YFZ450X shock will fit.
 

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Discussion Starter #9
What am I gonna have to do if the front shocks dont fit, to make them fit?
 

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You shouldn't have to do anything.But I could be wrong.
 

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One the top side my buddy said you have to force them in. He said he grinded alittle of the eye of the shock but he said it was easy. I have a pair in the garage that I have not put on. I have been wanting to revalve them. Let me know how difficult it is. LOL!
 

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You will have to shave a bit off of the top of the shock.
 

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Exactly. Where the top bolt goes through the hole, there is too much metal above the hole to fit in the 400ex shock mount. Just shave it down a bit so the shock will fit into the mount without hitting the frame.
 

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A set of KFX450 Shocks will work... and they say that they are a better riding shock than any other OEM shock.
 

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Thats a lot of money though.
 

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Discussion Starter #18
So i tested my rear shock and when i dropped it, it kind of fell nicely but it bounced too, so i'm not sure....
 

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If it bounced it needs to go...
 
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