Okay, so I'm about to lift my Jimmy 4" with a suspension lift and I'm putting 35x12.50 BF Goodrich Mud Terrains on it. But now I have another problem. My head gasket is blown in my 305. It still runs, but the oil just keeps turning into foam and the coolant keeps just disappearing. I'm debating on whether I should: Replace the head gasket and flush the motor, or just drop a different motor in it. I've never been in this type of situation before, so I need some advice. Also, how do you guys think my Jimmy will do in the mud once I fix the motor and lift it? I'm tired of my friends ripping on it saying it's weak because it has trouble in mud. But considering it has almost completely bald A/T's on it and a crappy 305 at stock height, I expect it to suck in mud. Hopefully the motor fix, lift, and tires will help me truck through the mud without using 4LO all the time. Opinions/Advice anyone?