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The YG9925688412 Rear Axle Shock Absorber Upper Bracket Assembly is a vital structural component designed specifically for Sinotruk HOWO and Houhan truck chassis
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Replacing a suspension bracket requires precision to ensure the longevity of your shocks. From a fleet mechanic's perspective, we recommend the following:
Preparation: Support the chassis with a jack and ensure the rear axle is stabilized. Do not attempt replacement while the suspension is under full compression.
Removal: Use a pneumatic impact wrench to remove the mounting bolts connecting the shock absorber to the YG9925688412 bracket. Inspect the frame holes for any signs of "ovaling" or stress fractures.
Surface Cleaning: Before installing the new assembly, clean the mounting surface on the chassis rail with a wire brush to remove rust. This ensures a flush, secure fit.
Torque Specs: Use new Grade 10.9 high-strength bolts. Tighten to the Sinotruk factory-recommended torque settings (usually between 180-220 Nm for this component class) to prevent loosening under heavy vibration.
Alignment Check: After installation, check the vertical alignment of the shock absorber to ensure no side-loading is applied to the piston rod.
