You know, i think one of the most overlooked areas on the trucks brake system is the brake lines. Too often people just discount them as OK, even if the truck has several thousand miles or is pretty old. I guess it is one of those. don't fix it unless it breaks things?
Fact is, brake lines break down like any other line or hose on a vehicle. The braking system operates under pretty high pressures, and when combined with literally thousands of pressure applications, from normal everyday braking, and the effects of aging, our brake hoses loose their integrity. Over time, the rubber compound cracks and breaks,causing the hoses to swell and stretch. This reduces the braking effect tremendously, when the hose swells up instead of keeping shape, it allows the pressure to drop. The bad part is it happens over such a long period, that people forget what the brakes are suppose to feel like. They become accustom to the spongy feel. Many times a pull to one side or the other can be traced to a bad hose, it swells when the brakes are applied and the pressure to that side is lower then the side with the good hose, which makes the vehicle pull.
Most experts agree that 4 years or 60,000 miles is a great reference to use for belt and hose replacements. I also happen to agree with with these theory, and change all my vehicles out at that interval. Drive belts, radiator hoses and anti-freeze are the most common replaced parts, but brake hoses should also be changed at these intervals. And just as most will flush the radiator when changing out old hoses, the brake system should be flushed and new fluid added when the old brake hoses are replaced.
Ever wonder why the new cars and trucks seem to drive and stop so well?? They have new parts that have not had time to wear. You will not get back that new car smell or experience with replacement parts, but you will make your current ride much safer and more enjoyable to drive.
Price wise for the brake hoses, replacement hoses are normally around 20-30 bucks each. the Dodge truck has three brake hoses, two in front and one for the rear. The high end stainless steel/Kevlar replacement lines run around 200 bucks for the set. I think they are money well spent.