This needs the clutch replaced.  The seller mentions it has an ‘aluminum’ buick V-6; however, I suspect the seller has confused that with the aluminum V-8. The engine is most likely cast iron if it is a V-6.  This may be a good price.

“1953 jeep willys, army green with rebuilt Buick v6 aluminum engine, only 38,000 miles. New muncie 4 speed transmission with high low overdrive. 4×4. Canvas top with bucket seats and old school cb radio. This things awesome, its lifted, it has a working winch on the front bumper, like new tires. Only issue is it needs the clutch replaced. If you’re good with cars the price I’m asking is a steal. Parts are inexpensive, all gm, and easy to come by. If you have it done professionally however you’re looking at about $1200, I have the quote on hand. All told you’d be spending around $4200 if you go that route, and $3800 tops if you can do it yourself. I’m in the military and I just don’t have the time or resources to get this fixed. It’s worth $5500 with everything working right, so I could easily ask for $4000, but Im dropping it to $3000 just for the inconvenience of it. Please call or text if interested, I’m horrible about checking email. Thanks for your time. My name’s Jared by the way. (317) 371-3709”

http://sandiego.craigslist.org/nsd/cto/3237128044.html