Thompsontown, Pennsylvania | 666 had EITHER the 310 or the 312. One was German, one was IH. 686 was either the same way or only available with the IH motor. You are thinking of the larger framed Ih's. The 826 had a german 358. The 766 had a IH 360. The 786 had german 358 and the 886 had 360 Ih's in the early models and 358 germans in the late models. Kept the 358 germans in the 3088's and 3288's up til the IH and Case merger. I have a 666 with the IH motor in it and love it. Very snappy little tractor. Will out pull my 80hp john deere atleast til it runs out of weight:) i think that is why i think it is so snappy. lots of power compared to the weight. A 686 SHOULD be the same deal |