Need part # for speedo cable

I went through this fiasco recently. I ordered a new speedo cable off Ebay. I went through the whole process of selecting the car model, year, make, motor, transmission to get the confirmation "this part fits your vehicle", WRONG!!

When I received it two weeks later it had the 5/8" inch nut. I was pissed and didn't want the hassle of sending it back. So we took the inner cable out of the new cable and then cut the threads off the 5/8" nut with a cutoff wheel leaving a round disc. We then slipped the 7/8" nut from the old cable over the cable end. Put it back together, tightened it on the transmission and it works fine.

So I lucked out but wouldn't recommend going this route.:BangHead: