[Mike K]

These GM-H 1940 repair manuals are common , they must have printed a good number of them. The book appears to be a reprint of a Canadian manual but some editing is evident. I've seen these 1940 GMH manuals with grey, green and red front covers. These books are usually well used, with a rough appearance, crinkled front covers and a weak spine, the pages are often loose and can fall out. Price was 4 Shillings and Sixpence.

This edition, the 2nd, has a supplement for 1941 Defence Units . It describes the 18 inch divided wheels. It also describes a few other military mods, i.e., the 15 cwt 1300 model was fitted with the larger 1 Ton I beam front axle. I've seen a 4th edition
of this manual that was published in Oct. 1942

Inside this manual, I found a loose leaf describing tuning information for Canadian DND trucks