the car works perfectly fine with o/d off, but whe u out it in od and drive it cant shift into 4th gear, it is saying invalid gear ratio. Now the od part is this is a completly stock tranny. Also it will enage sometimes but then refuses to to shift outta 4th. If anyone has any input feel free to speak. I have been to 3 shops with no anwsers even Satan cant figure it out and is recomending a rebuild.