Karl Townsend wrote:
I need the truck to haul home my latest toy...

I've had to leave the battery disconnected cause the juice gets sucked
down. So, today I put the ohm meter between the + post and ground. Got 180
ohm. Pulled one fuse at a time hoping to find a faulty circuit. No joy,
same reading the whole time.

Any suggestions on how to find what's draining my battery?

Use the ammeter function between the + post of your battery and the
wires that normally connect to it.

You will see the amount of current that is draining the battery.
As others have posted, remove the connections to fusable links
as well as to the starter to determine where the current is
going.

--Winston

Agreed. Use an amp meter, not an ohm meter to isolate the issue.
Start on the largest setting first, then work your way down if you can.
I had to do this on a camper recently.

Wayne D.