1984 Custom Deluxe 20 Dually Project.

[98Murray]

I picked this up today. Runs OK, could use a fuel filter and air filter and a oil and filter change, and new sparkplugs lol. The brakes dont work well either, it is full of brake fluid but I dont have much brakes until the pedal is all the way down. What could the problem be? Does it just need to be bled? It is a 1984 Custom Deluxe 20 with a 350, 4 speed, 4WD, dually conversion, and flatbed. It is a very simple truck and not very bad, just needs TLC.