450r/400ex compatibility

[88mxR]

Will long travel 400ex a-arms fit and work properly on a 450r? Is there much that isn't compatible?

[MAD450r]

This has been talked about many times. I own both and was pissed to find out I couldn't my suspension over. I ended up keeping both cause of that.

[REPOMAN]

a arms are not going to work but shocks will.