Lucas Prince of Darkness Built our Rear Calipers.

This can't be a good sign. LOL. First its blend doors, then radiators, now the brake calipers.

It is okay as long as the rear brakes are not operated electrically.

They aren't that bad* just make sure to re-grease the pins 1X every year and you will be fine as they are known to seize if not properly maintained.

I check those stupid pins constantly. I don't know how they managed to build a caliper with pins that can seize in less than 20K miles. Maybe its the silicone grease they use. I swapped mine to wheel bearing grease, but it will probably hurt the rubber boots over time compared to the silicone.

Too many track days. 8 years in salt and northern east winters. Extreme heat that has charred the red caliper paint black and ruined it.

Never had an issue with the pins, never seized, haven’t melted any seals. No idea why you all have such issues.

When I bought my car at 18K, a couple of the rear pins were seized. Dunno, I haven't had issues since then, but still 18K miles. WTF.

Use this grease instead* specifically for calipers and brakes.

Amazon.com: CRC 05361 Silaramic Brake System Grease - 5 oz. : Everything Else

Lucas just had Girling cast their name on the metal. Lucas may have invented the intermittent windshield wiper, and helped stop other electrical things from working, but Girling had the whole stopping thing figured out!

Yeah, I'd much rather have had AP Racing make our calipers, like they do for our factory/ST200 clutches.

But then I highly doubt that they sub-contract manufacture anything OEM on the rotor end of factory braking systems, like they do for brake and clutch fluid reservoirs.

Amazing that many have zero problems, my FiST has been basically flawless other than blend door issue.
As to the pins that are seizing it could be as simple as out of spec pins from the suppliers. Wrong alloy, out of round or poor finish.

BTW, I too freaked out with the "Lucas", (Prince of Darkness) brakes but they are actually pretty good! I also did not like where our shocks came from (forgot right now) but have had zero complaints or problems with them. Our cars are a smorgasbord of parts from all over the world combined to create a loved world wide cult car. All the haters can cry all they want, Ford did a fantastic job developing the FiST or we would not all be here.

The dampers look like Tenneco Automotive inside. When I cut one open it sure looks like the insides of other cheapy twin tube shocks I have cut apart. Would make sense since Tenneco is a Tier 1 supplier.

Jokes aside, I had no complaints with the OE brakes on the street. With the OE summer pads, they felt perfect. Just 10minutes into a session they would melt down, so that was my beef with them for any other use.

That makes sense, but somehow I always thought ours were Visteon made.

In any case, despite their way off valving for the factory spring rates, and supposedly cheap/crap manufacturing processes, mine seem to have held up quite well to the excessive pounding I put them through between working ARA rallies on some of the worst logging/forestry roads in the land, and the bombed-out surface roads in my area.

I don't think they are that far off from what corporate philosophy is on damper valving for comfort vs handling.

I don't think Visteon makes dampers:
https://www.visteon.com/

I believe it was German made Sachs that supplied the OEM ST shocks, the ZF( owner of Sachs) site says, "The new modular products were initially developed only for the aftermarket. In 2014, the first steps were taken to produce them for the Ford Fiesta. Medium and long-term, other car models will be covered." Did not specify the model but an early USA car magazine article prior to the USA FiST intro discussed where the various parts were made and I was surprised at the German shocks and had never heard of Sachs.

From fcpeuro.com/Sachs-parts (European parts supplier for German cars VW, Porsche, Mercedes and Audi plus Volvo)
"Sachs dampeners and shocks...........the parts are so reputable, many car manufacturer use them as stock OEM parts."

Sachs also makes F1 shocks if you have one in your garage, LOL!

Its possible its Sachs, being German designed. Sachs made shocks for Porsches and VWs back into the 70s. The housings off my car give no indication of the manufacture, beyond FoMoCo. Most of the time I see parts they have a manufacture mark on them. You would see Tokico, KYB, Showa on some Japanese products, Boge or Sachs on some German products, etc. Don't remember what my Ram 3500 had on it.

Sachs is big in the OEM/aftermarket OEM replacement clutch game as well.

Their ZF parent company actually developed and manufactured the suspension systems (in an exclusive deal) for the M-Sport/Ford World Rally Team Rally 1 cars (The Mk8 Fiesta and now the Puma), replacing the already top tier/excellent Reiger suspensions used before.

Lets not mix Pure Motorsport cars with production cars. Two totally different aims.

Now I am gonna have to dig that strut insert out ofthe garbage to see if there are any markings on the inside of the guts.