Video Presentation

Specifications

• Offroad model based on International, Western Star and Scammell Truck from 70-80’s
• Dimensions : 41.5 x 13 x 17cm, Scale : 1/20, Wheels : Ø56mm
• Power functions Motors (2x L+1x Servo Motor), battery source : PFS, Buwizz or 2.4GHz
• 6×6 drivetrain with no differential, primary reduction : 12/20 12/20 12/20
• two speed gearbox (manually operated), ratio : 16/16 or 20/12
• Removable working CAT V8 fake engine
• Steering with rack and pinion, cv-join and oscillating bevel gearing
• Front suspension : live axle with 3 link arms, 2 spring and 1 Panhard rod
• Rear suspension : walking beam axle with parallel links and 2x Panhard rod
• Openable hood with two locking positions, openable doors
• Openable and removable sideboard bed, flatbed with end roller underneath
• Compatible with regular Power Functions Battery or Buwizz / 2.4GHz Battery

How to build ?

📕 You only need the parts and the instructions, you can purchase the PDF instructions on this shop (two versions : Power Functions or Buwizz / 2.4GHz) and build with your own parts. You can see the partlist online on Rebrickable or in the instructions preview below. 

🎁 You can also purchase the complete package from LesDIY with alternative bricks (with 2.4GHz remote) (soon available)

🧩 Special thanks to 3_Bricks (Slovenia) for providing the Additional LEGO Parts, especially the one which enhance the look. They have large stock, fair price, and fast shipping, so if you are looking for LEGO Parts, check their store !

About this product

Instructions preview

Bill of material for the Power Functions and Buwizz / 2.4GHz versions at the end of the gallery.

A bit of story about this model

I wanted to build for a while a successor of my Western Star 6900 with AWD this time for more offroady session. So I chose a 6×6 truck with the same 56mm tire and started in 2024 ,first with the chassis and drivetrain. I incorporated some good ideas from other people that I must credit : Gyenesvi for the floating U shape connector on the front axle, enabling to remove one CV Join and gain space. The use of the larger Split connector to fits the heavy CV join, from Apachaihapachai, enabling to build a compact and sturdy front axle. Finally the vertical mounting of the towball arm, from Legov94, to lower the oscillating point and improve the suspensions movements.

All these solution enable to build in a more compact way, and so offer more space to place carefully the motors and the battery box for weight distribution, as well as having more function like the manually operated gearbox with a slow and fast speed. In combination with this tricks, I also use a bevel gearing for the steering axle as an oscillating axle, to avoid using a CV join and gain space to place the servo motor in the cab, and keep the hood empty to fit the V8 working fake engine. As usual, the engine is removable easily, as well as the sideboard bed, which are functions that I like for playability.

You can see the drivetrain and suspensions layout in the gallery below :

It result in a nice, sturdy and efficient truck, while keeping the adaptability features for upgrade, like swapping primary gears and battery to fit what people have. Of course the performance are limited to the tires size and the lack of portal hub, so while the approach angle is good, the breakover one is not. It remains a not-so-heavy truck with nice look which performs safely on rough terrain.