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difference in caliper pistons
- Thread starter Dombant
- Start date
adsm08
Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
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- Sep 20, 2009
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- 34,623
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- Dillsburg PA
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- 1987
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- 4.0 V6
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- Manual
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- 31X10.50X15
Both have pros and cons.
Phenolic pistons are less likely to seize in the bore from lack of fluid changes than metal ones, since the piston won't corrode.
On the other hand when the brakes do over heat phenolic pistons are more likely to degrade from the heat and start coming apart.
If you are going to flush out the brake fluid every two to three years go with metal pistons. If you want to be lazy with maintenance get phenolic.
As for interchangeable, I can't see why they wouldn't be.
Phenolic pistons are less likely to seize in the bore from lack of fluid changes than metal ones, since the piston won't corrode.
On the other hand when the brakes do over heat phenolic pistons are more likely to degrade from the heat and start coming apart.
If you are going to flush out the brake fluid every two to three years go with metal pistons. If you want to be lazy with maintenance get phenolic.
As for interchangeable, I can't see why they wouldn't be.
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