The truck clamp attaches to both the truck and the motor mount. It needs to fit snugly over the truck – so make sure both the trucks and clamp are compatible with each other.
Two main types:
- Pinned clamp
- Adjustable ‘pinch’ clamp
Some clamps come with the motor mount attached, and some do not.
The pinned clamp slides over the truck and uses multiple screwed ‘pins’ to clamp down onto the truck.
The ‘pinch’ clamp is usually in two parts which together pinches the truck between them with screws.
The pinch clamp will have slightly more leeway for different types of truck size.
Furthermore, you could always make and weld your own motor mount to the truck, meaning you would not need a clamp.