If your Jeep has a Hydraulic Clutch.... There will be two resiviors mounted on the firewall under the hood... One is Brakes, the other (smaller one) is CLUTCH...
Check the fluid level....It requires Brake fluid. If it's low or empty ,refill it, push the pedal slowly a few times and look for any drips or leaks on the lines or hoses....Or if the Slave cylinder (mounted on the bellhousing or engine block) is wet or leaking, it needs to be changed. The Slave cylinder pushes against the clutch Throwout bearing arm....Some are also internal, inside the bell housing .
These are available at any Auto Parts store.... "BH"
Poison spider Evap.Skid/Master craft grab handles/Or-Fab spare tire-can carrier/ Gibson SS Duals/ Q-tec Floor Liners/Hidden Hitch Receiver, AntennaX 7inch, 48" Hi-Lift.
Viet Nam Veteran 69-70, Troop "D" (AIR) 3/4 Cav. ,25th Inf. Div. CUCHI RVN. UH-1H Crew Chief of the "Pinball Wizard" 68-16224. Call Sign "CENTAUR".