rhines81
Tremoraholic
- Joined
- Nov 20, 2020
- Messages
- 693
- Reaction Points
- 1,500
- Location
- USA
- Current Ride
- 2021 F-250 XLT Tremor 7.3L - Rapid Red
Simply said, not enough down force while trying to gain traction. The axle reaches a resonance frequency and the vibration can tear things apart. As said previously, the u-joints will definitely feel it. In the cab of the truck, you might not quite feel how violent it is due to the shock absorption and springs, but the axle and attached parts feel it.What exactly is happening mechanically during axle wrap and causing the hopping?