Add a piece of pipe to your wrench/ratchet. Will increase the torque you can apply to the bolt. Simple leverage in action. Longer the lever the less force it takes to equal a shorter one. And in reverse a longer lever allows more force applied to the pivot point (bolt) with less effort on your end.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.