Very easy I must say but you must get a few parts from a donor vehicle ("83 and newer EA81) before starting.

You'll need:

left/right vented rotors/hub assembly

left/right calipers

The reason for the calipers off of the donor vehicle is because the vented calipers are a little wider then the solid calipers. If you compare the vented rotors to the solids rotors, you'll see a major thickness difference.

 

Tools you might need:

36mm socket for the castle nuts

14mm wrench

Pliers for removal of e-brake cable

12mm wrench if you need it

 

Extras:

new cotter pins or reusable cotter pins for the castle nuts

new brake pads

turned rotors

 

Jack up vehicle and put on jackstands

Remove front wheels

Remove e-brake cables from calipers

Disconnect brake lines from calipers (you can remove them from the back of the calipers)

Unbolt the calipers and remove

Unbolt the axle castle nut and remove rotor/hub assembly

Install the vented rotor/hub assembly

Install new calipers

Install e-brake cable

Connect brake lines

Bleed brakes in this order: Passenger rear, driver rear, passenger front, driver front

Now go out and test your car's braking once you get everything else buttoned back up. This mod is great for a brake upgrade and less likely to warp rotors too under heavy braking. Gen 1 cars wil now stop a lot easier and combining this upgrade with the rear disc conversion on a gen 2 vehicle will make it stop on a dime.

 

In mid '83 is when the vented front rotors came out. Earlier '83 EA81s don't have vented rotors so ake sure you check the build date.

Just a note on the "83 and newer" bit: not all '83s have vented discs (my ea81t wagon doesn't) - so look before you buy!