The best one for all around shop work is the Canadian Ford based 1932 through 1941 Ford and Mercury Service Handbook or shop manual. These manuals have a lot more information than anything that Ford Dearborn put out. They have near 250 pages and a lot of included reference information. This is what the one I have looks like but there are others that look similar and include the same information. https://www.amazon.com/1932-1941-Se...ln-Mercury/dp/B0019M6E0S?tag=atomicindus08-20