Steel Spur Gear & Differential Pinion Set for increased durability.
The Steel Spur must be used with HD Center Driveshaft:
#540242 - HD Center Driveshaft & Drive Cup Set
It is also recommended to upgrade the Main Differential Gear when using the Steel Diff Pinions:
#540236 - Complete Differential (Steel Gears/Diff. Cups)
Genuine BlackZon kit spare part for quick repairs, correct maintenance, and precise fitting.
