if you are talking about the cylinder the key goes in to, then you need:
steering wheel puller (any GM one will work)
lock wheel compresser (AUTOXONE should give u these together for rent)
6-8" philips head screwdriver.
the ignition cylinder itself is held in by one screw on the right inside the steering column. just remove it, slide the key cylinder out and the new one in. line up the groves and you are good to go. ith ignition cylinder itself is like $10
1994 Jeep Cherokee 4x4 5 speed - 4.0, Custom lift w/ RC long arm, 35" mudders, Bushwackers, JCR Stage 3 Sliders, ORO U-turn Steering, Dana 44, Detroit locker, Dana 30 HP Detroit Tru trac, 4.56 gears, WJ 32mm Front Sway Bar, 160amp alt.
2014 Jeep Grand Cherokee Overland V8 4x4 - 5.7 HEMI, 8 Speed, Quadra Drive II, Quadra Lift Air Suspension, Tow Rig...for now.
1995 Jeep Grand Cherokee V8 4x4 - SOLD
1988 Jeep Cherokee 4.0 4x4 - SOLD