Lego Technic MOC US Truck 70s 42078 Alternate

As I really like the style of the old US trucks from the 70s, I decided to try to build a much cooler truck only with the parts from the set 42078 Mack Anthem. This is my result. Features: engine hood can be opened by lever both doors can be opened by lever steering via HoGwheel V8 fake engine with moving pistons locking mechanism for semitrailer (trailer from original 42078 set should work with this truck, but I could not yet confirm) experimental rear wheel suspension with leaf spring