Chrysler, Dodge, Plymouth manual transmissions - Shifter Cables
I looked into the MoPar Parts Lists and there is different length of the shifter cables depending on model and engine. I found that:
In my own '64 Valiant Signet 200 V8 I have the 42" cable from the 6-cyl, it's a little tight between the left exhaust manifold and the cable but I solved it making a heat shield made of rubber hose on the cable. It seems that you can use the cable from any '62 to '64 Chrysler Product with pushbuttons (any body/any engine including C-bodies) if you can find a NOS or used one. Be aware there is a rubber O-ring to seal the cable housing into transmission housing. If the O-ring is missing or defect it really will leak fluid.
When changing cable, you have to look into a shop manual on how to disengage the old cable and how to adjust the cable to the get the gears engaged properly when pushing the buttons.
Update by Thomas L. Vranas, Jr.
I have a '91 Dodge Daytona 2.5 with 5 Speed. I have had to fix my shifter cables several times. What I did was take several different size heater hose, washers, and a retaining clip. The following is the process I used to fix my cables.
For the connectors on the transmission, I had to use two different size hoses to match the diameter of the shaft and the opening at the end of the cable. A large washer is placed on the shaft that matches the size of the cable end. (A second, smaller washer was required to match the size of the shaft.) Then the retaining clip is used to hold the washer and hoses in place.
For the connectors at the shifter, the same process was used. The only difference is that only one hose and washer was required.
So far, the connectors on the transmission have lasted a year with no visible signs of wear. All of the parts were found laying around, and the cost was basically nothing. The total time to replace all the ends was less then an hour.
Also see this shifter troubleshooting page