The fronts can be usually pushed in by hand or you can go out and buy a ratchet tool ,,,which is different for the front than the back . fronts push in ..rears turn in.
The rears require winding in, you will notice that there are
two peg holes in the piston, ..so you turn the pistons to retract them.
https://ford.7zap.com/en/transport/163/ ... 271/90038/They need turning with a tool
Needle nose pliers might do it ..or you can buy the tool ..you will not find these tools listed as transit connect ..as they are universal.
Note: With doing all 4 ..check fluid does not overflow out of master cylinder ..
Note ---there are ways and means to prevent this ..like undoing the bleed nipples ..if not familiar ..
you could snap the nipples or introduce air into the system. Rear - make sure dust seal around the piston does not wrinkle and snarl up as its wound back...suggest a bit of lube like washing up liquid, once in, clean up the washing up liquid.
Both front and back have wire clips ..note their orientation.
Slider pins need cleaning and will need to be
liberally greased with special grease.
i use copaslip by molyslip.
Do not let calipers hang off the flexible brake lines !
For tips and tricks, watch "Rainman Ray's Repairs" on youtube, as there are a lot people on youtube telling you to do things completely wrong, watch out for them!
all the best.mark