Brake Failure, Piston split in two - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 06-28-2008, 06:37 PM Thread Starter
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Brake Failure, Piston split in two

What would cause a piston to split in half?

About a week ago I felt my rear brake dragging on the F350. I thought it was the parking brake and played with it a while and all seemed good.

Going to work yesterday I loose all pedal and try not to kill anyone with my run away truck.

I get out of the truck and the rear passanger side is covered in brake fluid.

I pull the wheel and take off the caliper and one of the dual pistons is cracked in half and looked pretty awesome.

Swaped calipers and pads and all was good.

So . . . . what causes something like that to happen? Heat over a long time?

2000 F-350
7.3L 6spd 71xxx miles
Zero Mods 3/01/2008 - 3/25/08
Zoodad and Foil Delete 3/26/08
DIY Intake 6/25/08
4" TB exhaust 7/01/08
TW 6pos chip 7/27/08
HP oil crossover 7/27/08
'05-'07 Front end conversion 1/8/10

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post #2 of 2 Old 06-28-2008, 06:48 PM
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bad pads... something similer happened to me.

On vacation from a truck for a year or...
Looking at 6.4s Moving in a few months then hopefully buying my dream truck!!!

Driving an Audi till then...
but at work I drive
16 E-450s 7.3 powerstroke Ambulances
7 Duramaxes
1 GMC Kodiak Ambulance

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