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Can I swap my 03 WR450 frame with an 06+?

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I have an 03 WR450, but no title to it. I would like to register the bike for the street and found a deal on an 06 WR450 frame with all the paper work. I was thinking of buying the frame and swapping out as much as I can with the 03 to it. I realize that I would / might have to buy new body parts, but that's ok.

Am I dreaming that I could do possibly do this? Will the engine swap out? What about the swing arm, subframe and suspension?

Any help with this would be appreciated.

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As far as I know the only differences are the 06 tank,shrouds, possibly seat? are different. The newer forks were better(bigger) and the speedo. The engine is a direct swap.

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You mean from Steel to Alu frame.

No you cant.

The oil is kept in the frame in the steel frame.

Unless im missing something?

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isn't the 06 still a steel frame? if it is, i would think it would work ok but i don't know for sure. if it's an aluminum frame, then it would be a tuff swap.

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Correction.

The 06 motor wont work in the 07 chassis. The oil sump is totally different.

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