This ear-to-ear rear suspension shock absorber assembly is the core damping component for heavy-duty tractor rear suspension system. It is installed between the frame and rear axle to absorb and attenuate road shocks and vibrations generated during transportation. It adopts precision internal valve structure and high-quality wear-resistant oil seal to maintain stable damping performance, reduce rear body bounce and improve driving stability and cargo protection. With ear-to-ear connection structure, the installation holes match the tractor original mounting position for easy installation and reliable connection. Each shock absorber assembly undergoes fatigue test and damping performance inspection before delivery. It is an essential replacement spare part for tractor chassis suspension overhaul.