so my dad has a 61 impala bubble top thats a 4spd and he has a wrecked silverado with a 5.3. i tried searching but i can find anyone that has done this. obviously it will bolt to it. my dad said something about the pilot bearing in the end of the crank not working? ive only worked on a couple of manual trannys before so i figured id come ask all you experts. thoughts????thanks gary