Well here is mine alternative build of this set the inspiration behind this model is the japanese kei trucks and this is kei truck style dyne buggy truck and the front looks like a pug so i named this the pug 1

-functions 4 speed gearbox rwd fully independent suspension boxer 6 engine and steering

And one behind the scene thing of me desining of model i like mechanisms so i design first mechanisms and i like to learn new mechanisms and mechanical aspects and i have used my childhood to make all kinds of mechanisms and weird contraptions but i was never good at making models looking great usually thats why my models shine in mechanical department but not in look department 

Great. What happens to the gearbox when you select both levers together? For example 1st gear and 3rd together

2 minutes ago, Timorzelorzworz said:

Great. What happens to the gearbox when you select both levers together? For example 1st gear and 3rd together

Well it wont run because of speed difference

I thought that. You can use a shifter layout like in the 42082 Crane (The Big Red) that makes it possible to only select one driving ring and lets the other in neutral postion

https://pin.it/6RjXi32Eq well here is some close up images of the gearbox