The 4.9 liter / 300 cubic inch straight 6 cylinder engine has gears on the end of the
camshaft and crankshaft that mesh ( no timing chain or timing belt )
It has a timing chain and gears. NO BELT.
It has a timing chain and gears. NO BELT.
It has a timing chain and gears.
It has a chain and gears. NO BELT
No belt. It has chain and gears.
It has a timing chain and gears. NO timing belt.
It does not have a timing belt, It has a chain and gears.
It has a timing chain and gears.
It has timing chain and gears. NO BELT
It has timing chain and gears. NO belt.
It does NOT have a timing belt, That engine has a timing chain and gears.
It has a chain and gears. NO BELT. There would be no reason to fool with the timing chain and gears on that year engine. The chain and gears would out last the engine.