The tranny in my 2001 wr426 is more worn than I first thought. I've either gotta drop another 400-500 on parts, or maybe get a complete tranny from a wreckers. Thing is, there aren't many 426's out there, but there are plenty of 450's. Is the wr450 tranny different to the 426? If they're the same, I might look into getting the transmission off a wrecking 450.