A rear disc brake conversion can be an excellent upgrade for your car. Not only do they stop better, generate less heat, and require fewer repairs, but they’re also simpler to work on.
Start by picking up some pre-used rotors and calipers from a salvage yard. This will provide you with an affordable starting point and eliminate the need for specialty parts.
Brake Rotors
No matter which calipers you select – fixed or floating – the brake rotors included in a G body rear disc brake conversion kit are an integral component of the system. They provide the squeezing force that holds your brake pads to the disc when you press on the pedal.
Drum brakes utilize friction to slow a rotating shaft, while disc brakes use heat dissipation that helps protect pads and rotor from wearing down too rapidly. This leads to lower braking fade rates, helping drivers keep their vehicles running longer without having to replace brake pads as often.
The G body rear disc brake conversion kit features vented rotors to improve air flow and thermal transfer to the rotor. Furthermore, these thicker rotors have longer internal cooling vanes for improved thermal management.
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Caliper
Your G Body rear disc brake conversion kit comes with one or more pistons which generate force when friction material on brake pads contacts the disc, slowing or stopping your vehicle’s wheel. Calipers are popular in a wide variety of vehicle applications due to their improved thermal management and torque efficiency compared to drum brakes.
Additionally, a fixed caliper allows for tighter wheel to brake system tolerances, improving braking effectiveness and pedal feel. Furthermore, the caliper can be coupled with a larger diameter rotor which increases braking surface area and enhances thermal management.
Calipers are a common feature of many original equipment vehicles and an ideal option for drum to disc brake conversions. However, they do come with some drawbacks. Firstly, they may not provide as much brake bias as calipers with multiple pistons, leading to pedal pulsation known as “uneven pad transfer.”
Brake Lines
Brake lines are essential components for a reliable brake system. Early disc/drum brake conversion kits typically used single-circuit systems, with each line terminating at the wheel’s drum cylinder.
Modern systems use dual-circuit systems that draw fluid from a common reservoir, and may even include brake pressure-limiting valves to prevent rear tires from squealing under heavy braking.
When performing brake pad resurfacing or replacement, the face of the rotor may be coated with cooling fins to help lower its surface temperature during resurfacing. This allows the rotor face to expand more uniformly than with a solid rotor and equally distribute brake pressure between pads.
Our G body rear disc brake conversion kit comes complete with stainless steel brake lines that are strong and corrosion resistant, plus all necessary fittings and wrap to make installation a breeze.
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Brake Pedal
The brake pedal is an essential element of a disc brake system. If it malfunctions, modulation will be difficult and your brakes may feel spongy or sensitive.
This G body rear disc brake conversion kit includes everything you need to install new disc brakes on the rear of your car. This includes spindles, drilled rotors, calipers and brake hoses for hassle-free stopping power.
The master cylinder is an essential element in disc brake systems. It applies pressure to the calipers, forcing brake pads onto rotors. The bore diameter of this component plays a significant role in creating optimal pressure levels.
Spindle
This G body rear disc brake conversion kit works with factory calipers and rotors, but offers more clamping force than stock calipers do. This allows you to fit larger rotors without altering or replacing the existing system or replacing calipers.
Calipers that stick may be due to improper installation, dirt or dust accumulation in the mounting ears, or an inadequate seal allowing foreign objects into the mechanism. These issues will often compromise the entire assembly and ultimately result in failure.
Braking systems use heat to produce friction on discs. Once they reach a high enough temperature, these discs expand and increase in size.
📢Read also: GM’s G Body Disc Brake Conversion Kit