When to change the pads is a function of the type of driving you do. I changed out the pads on our 2001 Ford chassis at 75,000 miles. The fronts still had between 25% - 30% of the pad material remaining. The rears were about 5%. The rears should wear faster than the fronts if everything is in good mechanical condition.
A typical front wheel drive car activates the brakes @ 70% front and 30% rear. Unlike a car the brakes on the Ford F53 chassis are activated 50% front and 50% rear. Since the rear axle carries double the weight of the front the rear pads should wear down first.
The front and rear pads are identical. I agree with Wizard 1946. If you buy pads and wheel seals at a parts house the cost should be around $200.00. Genuine Ford parts will cost a bit more. If you have the work done at a Ford dealer it will cost about $100.00 per wheel
Thanks for all the replies.
I've got 42,000 miles so the recommendation to do it between 40-45,000 is appreciated.
Tire store estimated $250 per axle with good pads.
Sounds like that's in line.
Sounds about right for a quality job but at that mileage you can almost count on needing rotors in front
Where do you get that? Rotors should last the life of the vehicle. Only thing that really hurts them is chronic overheating and/or allowing the pads to wear down too often. In the latter case, they can be turned several times until they run out of material. In the former, if they aren't warped, and only show bluing in a few small areas, then again, they can be reused or turned. Rust is the other failure mode causing a rotor replacement, but again, turning can save all but the worse examples.
JIM@HITEK: While I agree that under some conditions the rotors SCHOULD be receptive to facing (turning, as you call it) my front rotors were way beyond that. The rear rotors MIGHT have been candidates for facing, but now you have the "mimimum" width of the rotor(s) to deal with, and of course, 99.9% of shops will tell you you're below the minimum (legal) dimensions. Yeah.
In fact...facing rotors just might be a "art" that is losing ground, at least with trucks...like our motorhomes. Shops find it MUCH easier (and cheaper?) to simply replace. No facing (turning) needed. Bolt up and go.
In fact, I'd hazard a guess that many truck repair shops don't even have the lathe anymore to do this, and those that still do don't use the machine or simply put them in a corner somewhere let 'em rot.
Note: my new calipers CAME with the pads ALREADY installed....something else the mechanic doesn't have to do anymore.