Better off just buying a tensioner kit (w/chain, guides AND the notorious
bolt).

When I ordered a timing chain/tensioner rebuild kit, the kit already
contained the bolt in question (apparently these break alot).

I had not even taken the truck apart yet when I bought the kit,
so finding the bolt was a god-send when I found the old bolt to be broken.

The bolt breakage on a non-rebuilt high-mileage engine probably occurs
when the guides wear to the point where the chain starts slapping.
The tiny bolt seems to be the weakest link in the system,
so it probably is the first thing to break when the system gets
too sloppy. However it can also break from over-torqueing.

Sorry I do not have the part # for the bolt itself.

Jeff Krause
'83 D-50 2.6/automatic, actual miles unknown.
'88 Chrysler Conquest TSI 2.6/Turbo 5spd. 225,000 miles when sold.
'80 D-50 2.6/5 spd., 164,000 miles when sold.
http://www.polyradial.com