Hecho in Mexico brake calipers/05 WK GC
Noticed my wife's grocery getter Jeep with 60K miles wasn't stopping worth a cr*p..inspecting the driver's side caliper I saw the top piston with a 3/4" piece broken off at the top and the piston itself frozen in the bore. Boot was intake, I flush the brake fluid every year (7K miles for this vehicle). I get the feeling these plastic pistons have a tendency towards hanging up...this Jeep's rear driver's caliper came from the factory with a "frozen" piston.
Do today's $50K GC's still come with plastic pistons ?..my 86 Audi had stainless steel cups !