I’m trying to help my buddy with his 2005 Ford Ranger, 4.0L V6, manual with 4WD. It cranks fine, shifts through gears, but it will not move. We’re thinking something to do with the parking brake, but I don’t have much knowledge about brake systems. A cursory inspection showed a cable without much rust, some rust on the rear drum brakes, and around the mounting where the brake cable runs into the brake drum. I can pull downward on the cable about three inches, so it doesn’t seem like the cable is pulled too taut. The pressure on the brake pedal feels about normal.
(edit: something sort of important I forgot to mention, which is why I don’t think it’s the transmission. In neutral, we cannot push the truck. When pushing from the rear, it will rock back and forth a few inches. When pushing from the front, the truck will not budge at all with two guys pushing on it.)
What sorts of tests can we do to pin down where the problem lies? If it is the parking brake, how can we loosen it up enough to get the truck moving to a shop (or at least to the garage where we can get to the brake shoes)? Thanks for any help you guys might have.