You are correct. The NEW ones are 5 1/2" longer overall. I contacted a GM dealer and he said as long as the length from the carb mounting bracket is the same, it should work? I don't see how! I did however install it and we'll see if it works in ANY way. I still want an original detent cable. I believe it is GM part#1262620 OR 1262618. PLEASE ADVISE IF ANYONE HAS A GOOD ONE!
kfoz