sootie
Well-known member
- Joined
- Oct 3, 2012
- Messages
- 11,853
- Reaction score
- 37
Traction bars will help the shudder off the line for sure. I wouldn't do sulastic shackles. The hop at 70 could be tires out of balance or out of round. The typical ford hop is 45-55mph. You could have a driveline shop check pinion lash in the rear diff and check to make sure you don't have a bent axle.