i am totally in the same boat as you. i pulled a cluster from a similar year xj, but it has about 250000 kms on it, my jeep only has 170,000 on it. i went to the dealer after i cleaned the new cluster, removed the dash trim etc. i thought they would be able to roll bak the kms, then install etc, but they told me it was illegal etc. i was confused. currently it sits on my desk waiting .
how do you reset these things?