Bruce - The G800 is listed in the 1936 pull grader catalog as being 8HP, not 5.5HP .. and this catalog lists the #44 and #66 as being the only P.C. grader models available.
Despite the fact that G T Barnards Caterpillar Product Guide book states that the #77 pull grader was built until 1942 .. there is no mention in the comprehensive 1936 pull grader catalog, of the #77 pull grader.
The catalog lists only the #66, #44, #33, and #22 graders, plus the Trailer Patrol grader and terracers.
http://img364.imageshack.us/img364/7...renginekq7.jpg


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