My new truck!

[Longhorn Man]

the wheels are off 80's GM trucks... more common on burbs.
The tranny is most likely the line to the modulator like already mentioned, should be short rubber into hard line , then at the bottom into rubber again. That's 4 points for the rubber to fall off a har line.
Looks like a solid start.
I noticed you are in OK and the truck is from Tx... you did get a clear title that was in the sellers name right?
That looks like a very solid platform... and you can put 6X9's in the doors and not feel guilty. If someone talks smack about cuttin doors, you can blame the P.O.!
You might want to do some investigating on that flex fan... do some searches on here and probably google too. Scarey stuff.