Quote:
Originally Posted by Grant Bowker
Parts list C15-02 confirms part number 1798678 as ''horn, front spring - right". Further, the appearance of the part matches that description.
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Grant, to get to the post's need for a date, have you seen documentation that shows a not before date? Like a detailed parts description diagram? We've got to help our fellow MLUer, ie the citizen, approach regulators who only understand commercial conventions.
The suggested 1940 date based on the cab is probably worthwhile as a start date. Engines were and are fairly interchangeable along the production run, but chassis and body details evolved.