[Bob Carriere]

..... that same diff. cover is seen on a lot of the regular C15a and larger models as well.....and is NOT exclusive to the armoured version. Maybe they just made too many and they had to use them some how.....

I have never seen them on original cab 11/12 axles always on cab 13..... some old some late 45....... but that part could easily be replaced in a field area if the front axle had suffered damage..... yet I do not ever remember seeing them on the rear axle even though they would fit....

Does anyone know the story for that conversion in design....?

Boob