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Mini-Mopar Turbo Performance
The Early L-Body Brake Upgrade
This package brings the sub-standard brake system of the 1983 - 1986 L-bodies up to par with the later, stock systems. For 1984 - 1986 vehicles, you will need
Front brake calipers, adapters, and discs from a G, H, J, K, or P-body
Rear brake backplate and drum assemblies from a G, H, J, K, or P-body
If you have a 1983 1/2 Shelby Charger, you will also need the proportioning valve and some of the brake lines from a later model L-body. It is best to get new pads and rotors for the front and new shoes and have the drums resurfaced for the rear. Also regrease the pins on the calipers and replace any other components that may be in bad shape.
The SLH Brake Packages
The SLH (stops like hell) package is a set of balanced brake upgrades that can be used on most platforms. It was originally documented by Mark Panos and has been reprinted by Dempsey Bowling on his SLH Brake Packages page.
The SLH 1 Package
This package upgrades the front calipers to the Kelsey Hayes 60mm units to improve stopping power even more. You need to have 220mm rear drum brakes to use this upgrade. You will need:
Front brake calipers, adapters, and discs from an S-body (minivan)
24mm master cylinder from a 1989 or later Daytona or LeBaron
You need the larger master cylinder to balance the additional fluid movement requirements of the 60mm calipers. You also may need to change your proportioning valve if you find that the rear brakes are not balanced properly. What valve is needed depends on the weight distribution of the vehicle.
The SLH 2 Package
This package upgrades the rear brakes to the 33mm solid rear disc brake system. You will need these parts from a 1989 or later Datona or LeBaron:
Rear backing plates
Rear hubs and rotors
Rear 33mm calipers
Rear brake lines
28.5mm master cylinder from a 1984 - 1992 Dodge D150 truck
You need the larger master cylinder to balance the additional fluid movement requirements of the 33mm calipers. You also may need to change your proportioning valve if you find that the rear brakes are not balanced properly. What valve is needed depends on the weight distribution of the vehicle.
The SLH 3 Package
This package is an additional upgrade for the rear brakes. If you can find them, it uses the 36mm vented disc brakes from the 1989 - 1991 Daytona Shelby and some LeBaron GTCs. You will need from the donor vehicle:
Rear backing plates
Rear hubs and rotors
Rear 33mm calipers
Rear brake lines
Proportioning valve
You will need the 60mm front brakes from SLH 1 and the 28.5mm master cylinder from SLH 2.