Originally Posted by charmalu

The old Iron Box transmissions have 3 shafts that come out the side of the box.
The 3 shift Levers clamp onto these rods with a Bolt that keeps the levers tight.
There are Splines that the two lock into each other on the shafts.
check to see if the Bolt is loose. These levers as I remember point straight up.

The all one piece box is Aluminum. Also has 3 levers.
The levers are held with a bolt going into the center of the lever.
Make sure this bolt is tight.
2 levers point down and reverse as I remember points up..

As mentioned, the two style of boxes use different Shift Rods as the lengths and bends are different.

There is an adjustment under the Shifter assy. Each shift lever pointing down has a hole in the side. Looking at the bottom of the shifter assy., there is an upside down "V" in the plastic.
Stick a Nail or Drill Bit through the "V" and the three levers to the "V" on the other side.
This lines up the shifter in the natural position.

Make sure the transmission shift levers are in the natural position.
Attach the Shift Rods to the Transmission end, then adjust the screw on end to the shifter assy., levers.

Remove Nail or Drill Bit.

Charlie