A reader asked if the WILLYS logo stamped on a hood could be used to replace the WILLYS used on the rear of Willys MBs during the war. At first blush, I thought they were different, but had never actually compared the sizes. So, below is a comparison (I randomly grabbed a tub and a hood example off the internet). The top photo shows the rear of a tub (obviously being repaired) and the bottom photo is a hood stamping from a CJ-3B.

As you can see, the war-tub Willys logo has more letter spacing than the post war logo. The spacing within individual letters (the W, T, & S) also is less.  The post war letters are taller than the tub letters.