Something to consider....can you afford to get the truck towed out ? Can you afford repairs to your truck or to any recovery vehicle? I have been called out numerous times to help get out a 4x4 and have been stuck a few times myself. I've seen heavy steel bumpers get tweaked, axles pulled off, etc. Seen where 3 trucks couldn't free 1 stuck truck and a tractor finally had to be used ($$) and once a h.d. tow truck called out ($$$$). Mud creats suction which fights against you. I once had a ford f150 2x4 with off road tires and locker. It did fine until I had to turn. It immediately sunk up to the axle. It took the 2 4x4s with me, 4 guys digging and about 3 hours time to get free. I used to carry recovery straps, chains, folding shovels, wood blocks & carpet strips. I won't go thru mud more than a few inches deep if possible. Reason I tell you this is so that you'll seriously consider the potential problems you may encounter.