Sorry if I wasn't more clear in the original post
In order to find the length I need would involve me having to take the whole cable off, and then try to bum a ride to the auto parts store
I figured that it would be easier to NOT have to take the cable off, and instead find out the length ahead of time, then drive myself to the store to pick up the cable, then go home, remove the old cable and put the new cable in
I prefer the scenario in .2 above - so . . . . . how long of a cable do I need ? are there specs indicated anywhere in any reference material by anyone ?