The gearbox is also quite similar to 1/16 scale ones:
To remove the gearbox from the hull, it was necessary to remove the sprocket drive shafts from the gearbox.
This was done by removing the bolt from the inner end of the drive shaft, then tapping the shaft out until the key was exposed:
With this extracted, the shaft and various spacers and shims could be removed. One side came out easily, but the other was stuck.
Once I had one out, I could slide a steel bar back in through the opening and tap out the other side until the key was exposed.
Then, there are eight screws on each side of the hull holding the flanges to the hull sides:
With the drive shafts removed, the gear box and motors came out as a single unit.
You can also see the damage to the suspension arm from the sprocket on this side.
Adrian.