Rebuilt TH400 has only forward gears

Dustytrix

New Member
This is my 1st post so I hope I did it right. I rebuilt my 1st trans with the info over the internet and some from here. I put a transgo shift kit and all the rest stock parts in my th400. Now that I installed it, as I was trying to top off the fluid, I put it in reverse and it wants to go forward, neutral goes forward and all the forward gears work in forward. I only moved the car up about a 6 foot just trying all the gears. I got underneath and manually put it in gear with same results. All info is welcome.
 
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