Typical super duty , seized up caliper slides , 07s and newer are getting worse, leaking caliper pistons, frozen slides even on low mileage late models .

typical superduty seized up slides . 07s and later are even worse , frozen slides, leaking pistons even late model low mileage trucks .

Yep, super duty. I have the temp gun in the truck to check to see if it's dragging. The pins felt fine on both calipers and no leaks, but I appreciate the advice and will lube both of them.

Last year I had a front right caliper stick, both pins were frozen up completely. I replaced the caliper. I then checked the front left caliper and there was zero lube on the sliders, bone dry and rusty. Replaced those too but reused the caliper and bracket itself.

I guess its time to do the same on the rears.

Thanks!

Actually, a good practice on any vehicle when rotating tires.

Does that pad now get classified as "metallic?"

And as others have said, on Ford Super Duty trucks, the rear caliper pins and sliders need occasional attention. Looks like the caliper hung up on yours.

My 05 F350 SRW went through 7 rear calipers from new to 85k miles. (keep in mind we have salt water winters here) I am not hard on brakes, changed the pads only on the fronts at 50k and the old pads were still 65%.

The piston in the rear caliper is the problem IMO. It is made of a phenolic material.

Once that piston gets just a little hot it grows, and will continue to hang up. I even had one crack and dump all my fluid. I could never feel the caliper dragging with the diesel. I ruined rims, rotors, changed brake lines, greased the slides twice a year......still always got stung. I used to carry line pinching pliers in the glove box of my $58k truck, if I noticed the caliper hanging I would pinch the line to save the rotor and rim while I drove home.

Between the brakes and the $30k + in engine warranty repairs I sold the truck.

How is this done?

Busted - if I remember correctly you have an F350. If so I will say that in the last 20k miles I have had 3 of my 4 brake calipers freeze up on my truck. Started noticing a smell and tracked it to the calipers locking up.

Not much work to replace obviously, but I was dissapointed none the less. Of course my truck came from NH so it saw some rust on occasion.

Remove caliper, and with a thin wire brush clean were the caliper slides back and forth. Lube the area were the caliper slides in with a good quality grease. You don't need a lot its more to stop corrosion. Then reassemble, Lisle makes a brush specifically for this if you need the part number I can post it,any good auto parts store should have it.