Did Standard ST brake conversion to PIU Brakes

[2020STAWD]

Spent my Thursday doing a Standard ST brake swap to PIU Brakes. PIU brakes are the same as the street pack brakes, just not powder Coated or zinc plated like standard brake ST calipers. You will need to paint or powder coat them. I used high temp paint a primer. If you have a Forscan it makes the brakes bleed and calibration easier.

I scored my calipers and brackets off a 27K wrecked PIU on eBay. I paid roughly $300 for the calipers and brackets.

I ordered the brake splash shields from Ford. They would’ve cost $120. I had Ford cash I used to pay for most of it. Some people say you can just hack up the OEM standard brake shields. But I see no way to do that without having basically no splash shield left.

Parts list if you buy -

FORD Part Numbers -
Front Right Splash Shield – L1MZ2K004N
Front Left Splash Shield – L1MZ2K005N
Rear Right Splash Shield – L1MZ2C028A
Rear Left Splash Shield – L1MZ2C028C

MotorCraft Part Numbers – RockAuto
1. Front Right Caliper Bracket – BRBF19
2. Front Left Caliper Bracket – BRBF18
3. Rear Right Caliper Bracket – BRBCR62
4. Rear Left Caliper Bracket – BRBCR63
5. Rear Right Caliper – BRCF550 – You will need to swap EB Module
6. Rear Left Caliper – BRCF551 – You will need to swap EB Module
7. Front Right Caliper – BRCF555
8. Front Left Caliper – BRCF517


The best option is to find a wrecked PIU and buy the parts off it..

Total cost of my install –
Calipers and Brackets (Off eBay) $305.00
Splash Shields from Ford - $120.00 - Had $110.00 in Ford $$$ cost me $10.00
Brake Kit Rotors and Pads (RockAuto) $380.00 – There are Cheaper Options Wanted Coated Rotors, I live in NJ.
Paint and MISC - $40.00
Total - $735.00


Lesson Learned

1. When you install calipers with no brake fluid in them, your ABS system is going to have a conniption fit. Once it cycles through and you get the fluid there, it will calm down.

2. Make sure you have the front caliper bolts for the PIU brakes. They are larger than standard brakes.

3. When doing the new splash shields the front bolt right up, they rear you have to trim the caliper shield area on the splash shield (see photos) or you would have to to remove the hub

4. Have plenty of DOT4 brake fluid available.

5. This is also a great time to flush your brake fluid. Mine had 97K miles on it. It was a little dark.

6. Take your time and do it right remember, this is what stops your vehicle.

 

[2020FordRaptor]

Great write up. I’d also add to make sure to unplug the battery, these cars tend to get a little touchy about codes when messing with the brakes.

 

[2020STAWD]

Great write up. I’d also add to make sure to unplug the battery, these cars tend to get a little touchy about codes when messing with the brakes.

I just added about having a forscan It made it a lot easier.

 

[Mustang5L5]

Good writeup. I have a coworker who wants to do the swap and was asking me if the MC is the same between the standard brakes and the PIU/Street brakes? I tried looking it up but was hard to find info on if there was a different MC (with different piston bore diameter) between them. Is pedal feel the same?

I even tried looking up the caliper piston sizes for the front and rear calipers between the two setups and came up with nothing. I assume the caliper pistons are the same size which would negate the need for an MC swap. Hopefully that is the case since i've never heard of anyone changing the MC out.

 

[2020STAWD]

Good writeup. I have a coworker who wants to do the swap and was asking me if the MC is the same between the standard brakes and the PIU/Street brakes? I tried looking it up but was hard to find info on if there was a different MC (with different piston bore diameter) between them. Is pedal feel the same?

I even tried looking up the caliper piston sizes for the front and rear calipers between the two setups and came up with nothing. I assume the caliper pistons are the same size which would negate the need for an MC swap. Hopefully that is the case since i've never heard of anyone changing the MC out.

From what I see from Ford they are the same ABS Control Module/Brake booster. My pedal feel is the same maybe a little less pressure needed to stop, but that may be due to new fluild.

 

[2020FordRaptor]

Good writeup. I have a coworker who wants to do the swap and was asking me if the MC is the same between the standard brakes and the PIU/Street brakes? I tried looking it up but was hard to find info on if there was a different MC (with different piston bore diameter) between them. Is pedal feel the same?

I even tried looking up the caliper piston sizes for the front and rear calipers between the two setups and came up with nothing. I assume the caliper pistons are the same size which would negate the need for an MC swap. Hopefully that is the case since i've never heard of anyone changing the MC out.

Pedal feel would be the same. Piston size is bigger. What do you mean by MC?

 

[UNBROKEN]

Pedal feel would be the same. Piston size is bigger. What do you mean by MC?

Master Cylinder