hi on lux,
You need the top shift shifter, the rail, and the block. Not just the rail itself.
If you use the passenger side rail, all that is needed is the rail and the shift block. The shift fork for this rail is the same for both style T-cases. What you see in my pics is all I changed.
This just happens to be the way I did it. Forward shift rail on the drivers side, topshift on the passenger side.
It can be done just the opposite if thats the parts you have. Either way will work.
The key stock can be found at most hardware stores. Its hardened steel stock often used in the groove of motor shafts so a pulley or sprocket doesn't spin on the shaft. It comes in different lengths and sizes.
I don't remember what size I used. It was the same thickness as the linkage and long enough to cover the opening, yet short enough to get a weld on each end.
