1Pcs #45 Steel Upgraded Front Center Dogbone 103.5mm Drive Shaft Avoid Vibration for 1-7 Arrma ARA109011 ARA109001 Infraction LiFeatures: Replacement of Parts#ARA310941, The original Arrma dogbone is #ARA310941, its 102mm from pin to pin, the vibration during operation is a little large, which will affect the stability of the vehicle. Our upgraded dogbone have been lengthened by 1. 5 mm, now its 103. 5 mm in length, and we have roughened them to make it stronger. The material is #45 hardened steel. After testing, test results show that this is a good solution Specification: