I have an oil leak around my front main seal a little around my rear main and my truck seems to run a little warm. So I am going to replace the following:

Front main seal
Rear main seal
Valve cover gaskets
Oil pump
Oil pan gasket
Water pump
Timing gears and chain
Thermostat
All coolant hoses
Is there anything else that would be good to replace while I am in here doing this?

I'm looking for a good write up on replacing the front main if anyone has a link too.

 

Hughes plenum kit maybe a good idea
or better yet an M1 intake manifold to eliminate the plenum leaks for good.
Headsare probably cracked so better get someHughes HDported, valve train and a new cam togo with it
If the exhaust manifolds dont look too good, headers would be in order to help with the cam/heads lol

Edit
250k! Wow, just saw your sig, better add a stroker kit to the list as well. That bottom end maybe a bit tired.

 

I'm going to check the plenum to see if it is leaking, my truck doesn't knock at all so I'm not to worried about that. I'm just trying to get a little more life out of this truck while I am saving for a V10.