Not shifting into 3rd/4th?!?!?!

Did you use a pin in the center of the shifter and make sure all gears are in neutral and adjust each shifter rod so they are all in neutral.Pic below.

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Yes, now all the gears work but it doesn't want to go into 4th. There was a few times with the old motor and it didn't want to go into gear when it was sitting. But once I was driving it was fine