What part do I need to order

As you know I have a 1979 Chevrolet Malibu 4 doors
and I need to replace the speedometer cable but on the shop that I order the parts that is rockauto. Com as I can't buy it local here in Israel for my car there are 12 models of that cable that fit my car and I don't know which one to order as they all are not so expensive still it don't make any sense that I will order all of them hopping that one will fit
so I am asking for your help if you can tell me what part to order as besides the different connector there are also different length and I don't know what will be the one that I need originally I had in my car install the 200 engine that is 3.2L and now I have a new 4.3L the same engine that come in the new safari with carburetor.
now the gear box is the one that came with the 200 engine this is a 3 gear box.

so can you help me?