Brake caliper bolt replacement?

[mm10]

Preparing to do rear brakes on my 2019 for the first time and looking at the service manual, it lists discarding the caliper hanger plate bolts (a seen in the diagram below). Is this really necessary?

Haven't seen this for brakes before, and not outside aluminum/magnesium applications, whereas this (plate, knuckle, bolt) seems to be all steel. TIA

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[mm10]

Also one follow-up - does anyone know the size/spec/pattern of the piston rewind face? Looking to purchase a tool to do it and unclear if it's the universal or some specific type

 

[Bob902]

Preparing to do rear brakes on my 2019 for the first time and looking at the service manual, it lists discarding the caliper hanger plate bolts (a seen in the diagram below). Is this really necessary?

Haven't seen this for brakes before, and not outside aluminum/magnesium applications, whereas this (plate, knuckle, bolt) seems to be all steel. TIA

I've always reused the bolts on all my vehicles.

 

[Dgc333]

These bolts have pre-applied Loctite on them. The bolts are fine to reuse if you clean them and use liquid Loctite.

 

[JustinR]

Also one follow-up - does anyone know the size/spec/pattern of the piston rewind face? Looking to purchase a tool to do it and unclear if it's the universal or some specific type

I haven't done the Ranger's brakes yet (I don't even have 5000 miles on it yet) but I have done the back brakes on my MKX a few times, and its rear calipers have to be wound back. I bought a Maddox-branded kit at Harbor Freight that has muliple plates for the rewind face. On the old Lincoln, it's plate #6, for what that's worth. The kit is a fair product, decent enough quality for home use. It gets the job done for me.

 

[Okinawa Joe]

Preparing to do rear brakes on my 2019 for the first time and looking at the service manual, it lists discarding the caliper hanger plate bolts (a seen in the diagram below). Is this really necessary?

Haven't seen this for brakes before, and not outside aluminum/magnesium applications, whereas this (plate, knuckle, bolt) seems to be all steel. TIA

And on a side note with these caliper systems. ALWAYS use your park brake. As the pads wear, your pulling the park brake maintains adjustment. I've been doing these in Fords from 1987 and I've learned a few things along the way. One other thing I do is after I wind them in is I set my pads with about .060 to .090 loose in the caliper. Then use the park brake to finish adjustment.

 

[mm10]

I haven't done the Ranger's brakes yet (I don't even have 5000 miles on it yet) but I have done the back brakes on my MKX a few times, and its rear calipers have to be wound back. I bought a Maddox-branded kit at Harbor Freight that has muliple plates for the rewind face. On the old Lincoln, it's plate #6, for what that's worth. The kit is a fair product, decent enough quality for home use. It gets the job done for me.

Thanks! Due for an HF visit anyway so will grab one if that worked

 

[mm10]

And on a side note with these caliper systems. ALWAYS use your park brake. As the pads wear, your pulling the park brake maintains adjustment. I've been doing these in Fords from 1987 and I've learned a few things along the way. One other thing I do is after I wind them in is I set my pads with about .060 to .090 loose in the caliper. Then use the park brake to finish adjustment.

Parking brake just in general to reset any knockback during normal driving or you mean as a way to recalibrate after new pads are dropped in? I assume the latter, just clarifying - I'm not new to disc brakes but new to Fords

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