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New Shoes and an Oil Change - 2007 Dodge Charger SRT8 Long-Term Road Test
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New Shoes and an Oil Change - 2007 Dodge Charger SRT8 Long-Term Road Test
The parking brake went out on our 2007 Dodge Charger SRT8, so we had the dealer take a look. Since it was there and almost time, we also had them change the oil.
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edmunds has done brake jobs before. as i recall they swapped the pads on their 370z. i say front brake job with aftermarket performance parts!
A lot of vehicles have rear disk brakes that have a parking brake built into the back side of the rotor.
The other type of parking brake setup on rear disc brake-equipped vehicles does use the regular service brake (calipers) to hold the vehicle in place. This may seem less complicated when looking at the overall number of different parts but it requires the caliper itself to be more complex. On the back side of the caliper's piston (that pushes the brake pad against the rotor) you need a linkage and arm to push against that piston. Because this goes into the caliper's body there's a greater potential for hydraulic brake fluid to leak out since it requires another seal. Early designs commonly had issues with dirty fluid that had absorbed moisture corroding metal and causing the parking assembly to bind or freeze.
There's some other small differences why an automaker might use one or the other, such as the drum-in-hat setup protecting the parking shoes and components behind a dust shield and away from the elements. This reduces the chance the service (regular) brake pad will freeze against the rotor and make a popping noise when driving off in sub-zero temps. Nowadays both setups have been perfected enough where it often comes down to the supplier being used and occasionally packaging and cable routing.