Genuine Sinotruk 1292-304-025 Synchronizer Sliding Sleeve for HW19710 Transmission – High-Strength Alloy Gear Syncro Sleeve

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Installation Instructions – 1292-304-025 Synchronizer Sliding Sleeve:

1. Drain transmission oil and remove gearbox from vehicle.
2. Disassemble transmission case; inspect gear wear, keys, and splines before replacement.
3. Remove worn synchronizer ring and sliding sleeve from 5th/Reverse gear cluster.
4. Clean spline shaft thoroughly; check for burrs or deformation that may hinder smooth engagement.
5. Install new 1292-304-025 Synchronizer Sliding Sleeve ensuring correct orientation (groove side facing outward).
6. Reassemble synchronizer assembly with new circlips and lock rings.
7. Torque all bolts to manufacturer specification (85–95 Nm).
8. Refill with recommended GL-5 80W-90 gear oil.
9. Test shift quality on bench or during test drive; ensure no grinding or jumping out of gear.