bought venza used. found torn caliper piston boots from a recent brake job. recently learned about phenolic caliper pistons. never heard about those before today. front has dual phenolic pistons and the rear has steel caliper pistons. phenolic caliper pistons to me is similar to composite plastic valve covers and oil pans. company cheaped out and used cheaper material. my main concern is they are fine new, but will crack and wear over time. i'm reading that the pistons will swell over time and cause seizing. model year is 2013 with 70k miles. i'm looking for a steel piston but cannot find any available. visual top inspection is they look new and no cracks.
the only available options that i'm able to find are phenolic pistons CENTRIC 14546002 or CARLSON 7842. Ford explorers 2002-2005 seem to use this piston too. but i cannot find steel pistons anywhere.
should i just install the piston boots and call it a day or pull the pistons out for a cleaning and rebuild? the boot kit comes with the square cut o rings. i flushed the system since it was amber color and 5 years old.
the only available options that i'm able to find are phenolic pistons CENTRIC 14546002 or CARLSON 7842. Ford explorers 2002-2005 seem to use this piston too. but i cannot find steel pistons anywhere.
should i just install the piston boots and call it a day or pull the pistons out for a cleaning and rebuild? the boot kit comes with the square cut o rings. i flushed the system since it was amber color and 5 years old.