Replace worn U-joints with steel universal swing shafts made for the HPI Savage 21. These wide 5mm shafts increase drivetrain resilience and are suitable for front and rear installation, supplied with adaptors, pins and washers for a reliable fit.
HPI Savage 21 Steel Front/Rear Universal Swing Shaft (Wide 5mm With Adaptor & Pins & Washers) - 1pr set - GPM SSAV12110
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