2017 Ram 2500 rear calipers should these be replaced?

[QuickBpBp]

Went over my truck for inspection… I just had put rear pads on my truck and noticed the lower piston on each caliper has a rusted area of the coating.. I cleaned slider areas, put new sliders in and replaced pads. Just caught them as the indicators hit! Anyway here is what I am talking about. Exact same area on both sides…They don’t squeak or squeal. Calipers compress smoothly. Can you buy just pistons? Thanks in advance…

 

[Thrashingcows]

Me personally I'd just clean them up with a small file, but it does appear that you can get replacement pistons, or new piston/seal kits.

2017 RAM 3500 6.7L L6 DIESEL Turbocharged Caliper Piston | RockAuto

 

[RemCharger]

Agree, that part is of no concern as far as sealing.

 

[dadsbee]

As long as they don't look this you're golden....

 

[Thrashingcows]

@dadsbee....

 

[91r/t]

**** those are mint if you looked at one from NYS. The whole thing would be bright orange and still functioning haha!

 

[QuickBpBp]

Thanks guys. I was worried guess about them wearing the pad crooked or hanging up a little cause it’s not flat there.. I like the filing idea but then again pistons appear to be cheap…
@dadsbee Thats unbelievable!!! It will take a few more years for them to look like that! Although they brined the roads twice here this past winter with NO MEASURABLE snow fall.