[400ex axle on 450r] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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400ex axle on 450r
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Posted by: Nick110

Will a 400ex LSR axle fit on a 450r?

Posted by: D6MX450R

yea but you also need a 400ex axle carrier to go with it and a new locknut. i have a lsr 400ex axle and carrier but the axle locknut wont go tight enough to hold it completely still, mine has about 1/8th inch of play. I am probally going to be selling this rear end set up soon to get a rpm 450r axle

Posted by: 400exrider707

I've asked this question a million times and really didn't get any rock solid responses. So I went ahead and tried it out for myself. Not really a good idea from what I can tell. I have a RAD tapered carrier for a 400ex and it is 1/8 longer than the stock 450R carrier. I thought about milling it down the 1/8 in. but my stock 450R brake stay wouldn't fit on the 400ex carrier. I gave up and am selling everything and just going to buy a 450R axle. I know that some people made theirs work and they seem to be doing fine, but at this point its no longer worth it to me for all of the trouble.

Posted by: 400exrider707

Heres the difference in carriers.......400ex one is on the left...

Posted by: 400exrider707

another....400ex one on bottom...

Posted by: JW450R1

i would just install the 450r carrier in the 450r