Originally Posted by Diesel911

Don't for get the timing chain guide rails too.
I have read a lot on the Forum concerning replacing the Chain and the Chain Tensioner but not about all of the other parts that also wear as until now no one has made much comment on them. I say good call.

I would think that the Crankshaft Drive Gear would have the most wear of all the gears on it as it has less teeth to spread the load over and has the full load of pulling everthing else.
Also, if a timing chain has 8 degrees of stretch and your Oil Pump is chain driven it could be a good idea to ceck that also and the Oil Pump Chain Tensioner.