This is a simple landing gear setup for your airplane. All parts can be even subdivided if you like. All parts are UV unwrapped. Some parts are mirrored, hence the UV for the right and left side are overlapping. The whole setups position is controlled by a single empty called wheels move all empty. The position of the suspension is controlled by wheels move suspension empty. The torque link elements are controlled by an armature with via IK.
Enjoy!