Your speedo drive is not clocked right. There are markings on gear that correspond to the clocking marks on drive gear holder, if you pull it now a lot of trans fluid will come out just take the retaining bolt on claw off and using something to turn drive (small screwdriver) turn it and the housing until the gear meshes or probably a 1/4 turn but don't force anything or the plastic drive gear will be eaten when you start to drive car, or the gear is already broken