2005 ford expedition brake question

Allen wrenches usually come in a set, try 3/8.

9mm Hex Driver (allen)

Snap-on is the only one with that tool

I think Thexton came out with it last fall also

Hello rcvez
Without a model and year I can only give you a general description on how to change chevy calipers.
Jack up the left front and put a stand under it, then remove the wheel. Turn the wheel all the way to the right
On the back of the caliper you'll see 2 female hex bolts(allen head) the size should be 5/16 or 3/8, use a
male hex socket or an allen wrench to remove the bolts, if you use an allen wrench you may have to give
it a couple of wacks with a hammer to loosen them up. Now use a pry bar work the top and bottom of the
caliper and walk it off the roter, set the caliper aside so not to strech the hose. Next, put the new pads in
the new caliper and bolt it up to the bracket, remove the hose from the old caliper and bolt it to the new
caliper, be sure the bolt is clean and use the new copper washer that came with the caliper. Now repeat
this on the right side, bleed the brakes and thats it. Hope this is helpful.

i just changed my front rotors and pads on my 2001 escape, 6 cylinder. everyone was wrong on the wrench sizes, including the idiots at my local ford dealer. to get the brake calipers off I needed a 7mm hex bit. to get the caliper bracket off I needed an 18mm socket, it was a very easy job but check your wrench sizes first, it seems that every year and model uses different sizes.

7/16 box end wrench. good-luck!!

CHANGING FRONT BRAKE PADS
Jack up the car. Take off your tire. Find the bolt on the back of the caliper and take it off. This should release the caliper, pull the caliper off the disc. Now you should be able to take the pad out. Replace the pad. You'll need a special tool to reset the caliper. As the brakes wear down, the caliper gets tighter so the brakes still work. I'm not sure exactly what its called, but you can borrow one from auto zone. Follow the instructions that come with it to reset the caliper. Slide the caliper back over the disc. If it doesn't go on, you need to reset the caliper more. Put the relese bolt back in. Put your tire back on.Drive slowly and test the brakes.
CHANGING THE REAR BRAKE PADS
The rear brakes on the rx8 are a bit different than most setups...be careful! The only way to move the piston back into the caliper is by way of a special allen head bolt that is directly behind the piston, on the back side of the caliper, installed under a 14mm bolt.
You have to remove this bolt to gain access to the allen head. As you loosen the allen head bolt(counter-clockwise), the piston will move back into the caliper.
Installation is pretty typical, again, the allen head bolt being the unusual part. The manual says to tighten this bolt until the pads contact the rotor, then loosen the bolt 1/3rd of a turn, then reinstall the 14mm bolt.

You need a 7mm socket, which are available at auto parts stores.

18mm

It's either 8mm Allen OR 8mm 12 point

Hi

If we're talking front calipers then lot of Fords have allen bolts holding the calipers in place rather than conventional bolts.

There's two on each caliper, and each one is inside a deep rubber sleeve with a plastic pop out cap on them (if the caps are still there of course!), so basically, you need to pop the plastic caps out of the rubber sleeves and then find an allen (hex) key to fit the allen bolts, and then you're good to go, but you'll need a longish handle on the hex key and get some anti-sieze spray on there because the slides may put up a fight.

Very best regards

Geordie