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:


  • engine hood can be opened by lever
  • both doors can be opened by lever
  • steering via “HoG”-wheel
  • 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 (therefore removed the differential gear)


To build this truck you only need the parts from the set 42078 Mack Anthem, including one of the spare parts (3070b dark bluish gray, not listed in the inventory below) which was included in my set package.

The building instruction is a PDF file with 271 pages, consisting of real pictures of the assembly process based on the style of the original Lego instructions (e.g.: see more pictures).

However it is recommended to have at least some Lego Technic building experience. If you have built the original 42078 Mack Anthem without any problems, you should have no problems with this truck as well.

Measurements (approx.):

Length: 43 cm
Width (tires): 14 cm
Width (mirrors): 15,5 cm
Height: 19,5 cm

More pictures:

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Name US Truck ´70s – 42078 Alternate
Designer Janotechnic
Designed 2020
Inventory 1576 parts
Theme Technic
Alternate Build of 42078-1 Mack Anthem
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PDF - Photo Sequence

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