Hello, You need it all, every bit from a 91 to do the conversion, so the list is; comp. hoses an all the hard lines and the two flexible ones to evap, compressor and bracket, power str. pump and hoses, condenser, evap assb. dryer can be reused if you put in your oven at 150 for 2 hours, the wire harness for the a/c system on the 91 has a grey relay for the clutch. You will also need the front switch panel with the switch for the a/c. you can also use the fan assb. but you need to wire it in with the high side switch. When your done installing, its about a two day job, you won't believe the difference. Take your time, when I did mine I used the whole wiring from a 91 with the computers so it took a little longer.