Key Features
- .700" bore x 1.4" stroke master cylinder with integral reservoir for compact, clean installation
- External firewall mount with mechanical linkage dramatically reduces firewall load and pedal effort
- Perpendicular cylinder positioning maintains full pedal stroke for maximum clutch modulation
- Firewall support plate provides structural reinforcement and uses stock clutch rod hole
- Works with stock or reproduction clutch pedals while reducing pivot shaft loading
- Compatible with most internal and external slave cylinders including Tilton 6000 Series
- One-man bleeder kit included for simplified installation
- Made in the USA
Description
The LF Series Master Kit solves the persistent problems of firewall flexing and heavy clutch pedal feel that plague hydraulic conversions in classic trucks. Traditional master cylinder installations create stress points that flex thin factory firewalls, while direct-mount systems often overload the pedal pivot shaft. This engineered solution mounts the master cylinder on the outside of the firewall directly in front of the clutch pedal, providing generous engine clearance while using a mechanical linkage that distributes loads away from both the firewall and pedal shaft.
The long-stroke, small-bore design (.700" bore x 1.4" stroke) is specifically sized to match the volume requirements of modern internal hydraulic release bearings. When paired with Tilton 6000 Series bearings that have .700" of piston travel, the system delivers precise clutch engagement with minimal pedal effort. The integral reservoir eliminates separate fluid containers for a clean, compact appearance that tucks neatly against the firewall.
The mechanical linkage design allows the full stroke of the pedal to maximize clutch modulation while keeping the cylinder perpendicular to the firewall. This perpendicular positioning provides mechanical advantage that further reduces the pedal pressure required to operate the clutch. The included firewall support plate distributes mounting loads and provides design flexibility to use the original factory clutch rod hole location.
Fits 1960-1972 Chevy C10 and C20 trucks using stock or reproduction clutch pedals. The system uses DOT 3 or DOT 4 brake fluid and works with most internal and external slave cylinders on the market. If pairing with a slave cylinder other than the Tilton 6000 Series or MDL LF Series slaves, contact MDL to confirm proper bore sizing for your application.
Kit Includes
- .700" bore x 1.4" stroke master cylinder with integral reservoir
- Mechanical linkage assembly
- Firewall support plate with mounting hardware
- Hydraulic lines
- One-man bleeder kit
- Installation instructions
- Lifetime technical support