79 T/A Pretty much hit it dead on. Be smart about it and it will be fun. Ive used 4low a few times in my Ram, but I was really really stuck. Always remember when entering into any mud hole, puddle...that there could have been some prick with 44" swampers who went through there and just dug some ruts, so if you go flying into them, remember not only can you suck up some water, but you could come to a nice abrupt stop to which you are high centered (or worse) and wont be getting out without some help. Just be smart, there is always that one hole thats a bit deeper than you thought that drops off to about 4' deep, or the trail you thought was solid really wasnt and you find yourself sinking to the axles....ask me how I know those two
Have fun doing it, its really a blast but just be careful.