Slips or Chatters In Drive

1. Improper fluid level.
2. Improper throttle valve rod adjustment.
3. Damaged or improperly adjusted linkage.
4. Low main control pressure.
5. Sticking or dirty valve body.
6. Open forward clutch check valve.
7. Damaged forward clutch piston seal.
8. Blocked forward clutch feed hole.
9. Damaged planetary low one-way clutch.