Shift kits.. do you really need one????

.......1st off I do not consider myself a so called expert, but that over a close to 30 year period of playing with these 727s and 904s I have a pretty good understanding of them........No that's not what I was saying.......I was generally speaking that when u start modifying things that whoever is doing the modification has a real good understanding of how things work, cause sometimes we can cause more problems or I should say different problems than what we had to start with or didn't have to start with.......1 thing I do find is that a lot of tranny problems are caused by not having the proper kd linkage or cable and not set properly even though they think its right.........kim.....