This 2201010-HA431 drive shaft with sliding fork assembly is a complete heavy truck transmission drive shaft for Dongfeng Tianlong GX. It transmits power from the gearbox output to the rear axle differential. The built-in sliding fork (telescopic spline sleeve) compensates length variation caused by suspension jounce and rebound during vehicle travel. The shaft tube adopts high-strength seamless steel pipe, flange and sliding fork are forged alloy steel. 100% dynamic balance treatment to reduce vibration during high-speed rotation. Universal joint cross shaft ensures angle compensation. Each drive shaft assembly undergoes dimension inspection and dynamic balance test before delivery. It is an essential replacement spare part for heavy truck chassis drive system overhaul.