You're on Mark!

I should mention that the truck I'm showing up above was 'pre owned' by at least 2 others before me but had no rear body work. Also as with many
models I've either seen or purchased over the years this one had some violence visited upon it. 'Extra' holes drilled in places that no longer made sense
possibly from some long forgotten attempt at modifications; ugly, clunky plastic parts added to implement an RC system, servos partially hacked( literally)
to get them to fit I'd guess. One of the areas still needing attention is the front cab and engine bonnet area. You can see that the side covers are given to flopping over
in a stiff breeze which I need to fix with a more stable approach. The hood itself required filling of multiple holes and replacing cut out sections as well as reshaping
the piece. I'd love to make the bonnet a functional part with hinges and such. As my other two trucks don't have the side plates( apparently I was told these were unavailable
for years) I plan to make my own using a louver tool I have yet to make. Depending on how these turn out I make remake the entire assembly and replace the semi- clunky
cast hood itself. It's one of those central eye-focused parts that spending time with should greatly improve the model.

Since getting these models I've familiarized myself with the engines and rear( and front) axles so these pose little mystery now. The part that remains relatively unknown is the transmission. it is a beefy unit seen below.