I have an 80 model now, I'd let you climb rocks with it.WOW! Looks like fun! I learned how to drive in a '79 Renegade CJ7 3 speed. Think was so old, if you didn't lock the wheel, you could start it without the key, and didn't need to press the clutch in at all to shift gears! My daddy wouldn't let me do any mudding or rock climbing.