I'm the original owner of a 1999 TJ 4.0, with 207K miles. According to a mechanic friend in another city, my local garage that has always done maintenance and repair may not have been doing certain things over the years. They are not Jeep specialists. I've downloaded the service manual from this site, and note that Maintenance Schedule A ends at 120,000 miles. Is there an extended schedule somewhere else? Thanks.