Winter = a gnarling landing gear?

If I drive over a floor shaft, drive up into the garage etc., and the landing gear dives, then crunches (or squish like a dull one) it in the area of the front axle. Is there anyone else with this problem or who has had this noise fixed? If so, what can it be? The shock absorbers? Does this work on guarantee or culant? Would you like to inform me before I go to the forge and not let me eat like a dip. Ha t Dr. Kater a piece of advice? Thank you in advance. Greetings from Vienna