Hay Dan The four cyl. Works fine. Yes they are very slow going up a hill. I run with a bunch of guy's who run V8's . Every year on are trip to Silver Lake sand dunes I have to tow one of them out. Sure I dont fly up the hills like they do . but its still fun. I also drive mine the 21/2 hour trip to the dunes and drive back home. They trailer there Jeeps. Anouther guy I wheel with is big into mud. I go with him alot also. I get stuck just as much as him with his 8. I have a winch so it's not that big of a deal . I'm more into trail rides. So it works good. Right now i'm changeing gears to 4.88's . That will really make a huge diffrence. Hope this helps. Mike 48 Willy's 4cyl 50 Willy's pickup flat head V8 87 YJ 4cyl. 33" winch.
Later Mike