other than maybe the pedals....nothing. The main things you need are the computer, harness, and pedals. I have a computer, harness, pedals, upper/lower boot shift boots and flywheel if you're interested. Then all you need to buy is a tranny, clutch and cable. And you can use a transmission from any 86-93 5.0 as long as you use the 86-93 bellhousing also and not the 94/95 one because the input shaft is a different length