The answer is way too involved to try an answer here. Purchase a Hayne's or Chilton's repair manual and almost all Auto Parts stores. There you will find detailed instructions. When replacing the chain, make sure to replace both sets of gears also. Buy the chain in a kit form which has chain, gears, and other parts needed.
Chain
Chain
A 2004 Wrangler has an inline six, not a V6. It has a timing chain.
Chain
timing CHAIN
The V6 has a timing CHAIN
Yes
Chain.
Chain
ChainChain
Timing chain.
The 2.5 liter four cylinder engine in a 1997 Jeep Wrangler has a timing CHAIN