noththing.
The Jeep is my first car and I couldn't be more happy with it.
I can service it myself sense its old.
Its got a v8 and can climb just about anything you, but it to.
If your are looking into this kind of Jeep, go for it. I had driven a few before this and thought they weren't worth my money. CJ7 is the way to go.
I have a 1978 CJ7 Renegade too and I love it.