The GPM LU4094F/RS set is engineered from #45 hardened steel to provide predictable strength and extended service life for front and rear installations on the TEAM LOSI Tenacity U4. These CVDs are specified to maintain smooth articulation while improving resistance to wear and impact. Upgrading the dogbone from 3.5mm to 4.5mm increases torque capacity and reduces the risk of drive failure during high load situations.