400ex rear end on a 250r?

[TheFontMaster]

Will the rear end of a 400ex, swingarrm, shock, linkage fit onto a 250r. I don't think they do but i got a good deal on some 400ex parts.

[400exracer511]

i dont know about the other parts but i tried to put a 250r rear shock on my ex and it didnt fit