I personally would be weary of purchasing a rancher that needed a new piston and rings. A lot of people on this forum have had reoccurring problems after an improper top end rebuild. If its not done right it will not last. They can also run good for the first 10-20 hours before the problem reveals itself. Thats just my opinion, I may be overly cautious. I have over 3000 miles on my 05 Rubicon and its still completely smoke free on the original rings.
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