The pulley is held on with a snap ring and the coil is held on with a press fit. You can use a 3 jaw puller to remove the coil. You will probably need the old coil to match the 8 rib pulley. Most SCs have the 16 spline shafts and clutch hubs to match. If you have a 21 spline compressor you will need to use a 21 spline clutch hub that matches your 8 rib pulley. The clutch hub that I have used successfully is Ford part # F3DH-19D786-AA. Also you will have to set the air gap of the clutch to pulley at between .018 -.033 inches. Just add bushing from Motorcraft bushing kit # YF1583A if you need more.
Here is a picture of the clutch
I am using a 94 Cougar V6 6 rib pulley compressor (FS-10) mounted 180 degrees to get the inlet/outlet block on top. This required me to reused my 8 rib pulley and coil but keep th Cougar clutch hub as it matched the spline on the shaft. I had to add a few bushing to get the correct air gap. This compressor has been in use for a few years with no problems. Basically any rear inlet/outlet FS-10 compressor can be used on a SC if you convert it to 8 rib.
Jerry