I found the same leak on the t-cover but on pass side top corner.

I would agree if it has 198,000 miles on the stock chain it is well over due.

I would add a t-chain tensioner from the v-6 mopar engines while you are in there.

it is a little bit of a job,but when I done the 2 I had,i did the t-chain replacement along with the plenum pan gasket intake R&R. took a full 8 hrs.

makes it alot ez-er if you know the 6 bolts will let you swing the alum bracket,a/c comp,alt, out of the way as a unit without breaking down the a/c lines.

well my second job was ez-er faster after I had the leaning curve on the first one.