[Lynn Eades]

The ratio is on there because the T223 Dodge 6x6 of 1943, had the same transfercase with a different ratio. (1.5 to 1) (the flanges are different but interchangeable) The war time ratios are considered better because you would have 8 different ratios, but with the M37 assembly, one gear in high range is pretty much the same as a higher gear in low range. for example 2nd low is very similar to 1st high, 2nd high is much the same as 3rd low.
See if you can locate a copy of TM9-1808C (now that your nearly finished) Its an interchange info book cover Dodge military and civilian from 1941 to 1971.
The same t/fer case (1.96 to 1) with wrong flanges fitted, is found in the M715 and M725