I am wondering what would cause the engine to buck when under a load in second gear? When traveling in like a 25mph zone and going up hill the car bucks. I give it gas to shift down and it goes away. What would cause this??

Loose engine mounts and dog bone bushings?

It doen't feel like a loose engine, or tranny. I am pretty sure its in the motor.

many little things.
weak ignition coil
bad spark plug wires
bad timing
dead spot on the TPS (throttle position sensor)
carbon build-up

The coil and wires were new when it was parked, TPS is brand new. I will check the timing. Is the timing that complicated to set? I read my Haynes manuel and it was confusing.............at least to me.