The timing chain does not require replacement unless it has failed.
Chain
It has a timing chain.
This vehicle has a timing chain.
It has a timing chain.
Yes it does, both the 4.0, and 5.2 I would change at around 75,000-90,000 miles. The timing chain should last for the life of the engine. 200k plus.
4 cylinder has a timing chain ,6 cylinder has timing belt.
It does not have a belt, it has a chain.
The 4 cylinder has a timing chain and the V6 has a timing belt. No maintenance is required on the 4 cylinder chain.
Chain.
Your 2.4 liter - 4 cylinder - has a timing CHAIN
timing chain