Egg on my face, mea culpa. Trying to find a chair to hide under. When I saw the two maestros responding, I thought something was up. I was spewing incorrect information. I consulted Guy's book, and the 281 IS listed for the W-450. In my first response, I had used information from my database. This is an error that slipped thru the cracks. Reviewing the old Nebraska Test PDF files, I see that the MBHP rating for the W-450 is 52 as opposed to 51 for the W-400. However, on this PDF file, Nebraska has both tractors listed under test #533. This is probably where I screwed up entering data in my list. Since I saw the W-450 listed under the same test number as the W-400, I ASSUMED incorrectly that IH didn't bump the displacement of the W-450 when it came out, so they didn't need to bother with test submittal. Thanks for gettin' me squared away. I couldn't find in either C.H. Wendel's book or Lorry Dunning's book where the W-450 was tested. Can you help me on this? Joe Evans
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