[Physics]Forklift Problem.

I have a forklift model set up to work as a car and I want the fork to throw things. I have this working but every way I try gives me different but unsatisfactory result.The fork is moved by animation and is a child of the car.

Animate Physics + Kinematic rigidbody = Flips truck when animated;

Animate Physics = Flips truck and target;

no Animate physics + Kinematic rigidbody = stable but inconsistent throw;

Have I missed the good way to do it?
Thanks Maurice,

The forklift is flipping over because the weight of whatever is on the fork is pulling it over.

If you never want it to be able to flip, then lock the axes of rotation in question (probably X and Z) in the rigid body.

If you DO want to be able to knock over but not so easily, move your center of gravity lower and increase your mass significantly.