If the levers are centered the shifter should work. Sometimes you need to go a turn either way the get the shifter on center. The fluid is good. The rest is in the transmission.
The levers are centered as good as they can be both at the transmission and the shifter using a rod through the centering holes.
I noticed a lot of slop in at least the reverse side of things. There were about 5 turns of range on the reverse rod and it would still fit on both ends. I put it in the middle of that.