Your stock shifter inside the car will work, just make sure it is aligned correctly before you tighten the linkage. You may NOT have to buy a new driveshaft. I used my driveshaft from my 289/C4. I shortened the yoke one inch and it works great. If you want to rebalance your driveshaft, that's up to you; I didn't. I bought a crossmember from either Ron Morris or Mustangs Plus, I don't remember. I had to work with the E-brake a little, but I don't think it was that much trouble. If you are a decent mechanic, you can adjust the TV cable yourself. I did it myself and I've put over 3k on the AOD with no problems. I wouldn't call this swap easy, but it is well worth it. Challenging at times, yes. For me the most challenging part was getting the linkage hooked up right, so that 'Park' indicated inside the car would correspond with Park on the transmission, and making sure that when I put the car in Low inside, the AOD was in Low. This was just a matter of checking/adjusting the linkage. Very doable, just time consuming. If you have skills, you don't need to spend a lot of money beyond parts.