Flickering in 206+ gears

I have 2011 206+, my brother has 206 in his car, he told me that he was shaking in gear while he was driving, and he said that his gear was shaking very much.

the problem is most likely there is a long short arm under the gear, there are two round balls with nickel, there is a shaft in the middle.

eyw bro thank you

just like our friend said, it is a situation related to the shift levers.

The name of the part of the gearshift on the gear stick may not only be from it, but the trouble is in the engine mount, the space consisting of cubes only shakes the arm.

If the head of the car accelerates by shaking completely when it is loaded into the gas, then the problem is on the axles.