Which cars does the Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A fit?

Cusco USA lists part number LSD 134 B for the Mitsubishi Lancer Evolution III (CE9A, 1995-1996), the Mitsubishi Lancer Evolution II (CE9A, 1994-1995), the Mitsubishi Lancer Evolution I (CD9A, 1992-1993) and the other cars listed under Applications. The Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.

What does 1-way mean?

A 1-way LSD locks only under acceleration. When the driver lifts or brakes it stays open like a factory diff, so the car turns in and rotates freely off the throttle. It is the most forgiving setting for a car that is also driven on the street, and the least likely to make the car push on corner entry.

How does the Type MZ differ from the Type RS?

The Type MZ uses a high-pressure cone spring that works against the activation pressure, which gives it the highest initial torque of any Cusco LSD and a linear build to full lock. The Type RS uses coil springs for a lower initial torque and smoother, quicker engagement, which makes it the friendlier choice for a street car.

Can the ramp setting be changed later?

Cusco lists the setting for this unit as 1 way (1 and 1.5way). Where Cusco names an alternate or optional ramp set, the unit can be changed over when the differential is opened, so it is best combined with a differential service rather than treated as a quick change at the track.

What should I know before installing it?

On a front differential the transmission must be removed and split to fit the Cusco unit, so most owners have a drivetrain specialist do it. Plan on fresh gear oil, since Cusco sells its own LSD oil for clutch-type differentials, and read the notes on this page for any extra parts Cusco says the job needs.

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Description

Cusco Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A Mitsubishi Lancer Evolution III, Lancer Evolution II, Lancer Evolution I and Galant VR-4

Cusco’s Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A and related Mitsubishi models replaces the factory front differential with a clutch-type limited-slip unit built around a high-pressure cone spring, which gives the Type MZ the highest initial torque of any Cusco LSD. In 1-way form it locks under acceleration only and stays open off the throttle, so turn-in feels close to stock. The cone spring brings the clutch pack to full lock at a linear rate, so the locking effect builds predictably. It suits a car that sees competition, where strong locking matters more than street manners.

Features

High-pressure cone spring for the highest initial torque in the Cusco range
1-way action: locks on acceleration only
Linear build to full clutch-pack lock
Clutch-type multi-plate design in place of the factory front differential
Built for the Lancer Evolution III and related models

Specifications

Cusco part number: LSD 134 B
Type: Type MZ
Action: 1-way
Cusco setting: 1 way (1 & 1.5way)
Position: Front differential

Applications

Mitsubishi Lancer Evolution I: CD9A | 1992,1993
Mitsubishi Lancer Evolution III: CE9A | 1995,1996
Mitsubishi Galant VR-4: E38 | 1987-1993
Mitsubishi Lancer Evolution II: CE9A | 1994,1995
Mitsubishi Galant VR-4: E39 | 1988-1993

Notes

Fitting the Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A means removing the transmission and splitting it to swap the differential; installation labor is not included
Cusco: Comes with speed meter driven gear. To use this LSD for OE Viscous LSD equipped vehicle, requires to replace ring gear and bolts.

Frequently Asked Questions

Which cars does the Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A fit? Cusco USA lists part number LSD 134 B for the Mitsubishi Lancer Evolution III (CE9A, 1995-1996), the Mitsubishi Lancer Evolution II (CE9A, 1994-1995), the Mitsubishi Lancer Evolution I (CD9A, 1992-1993) and the other cars listed under Applications. The Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A replaces the factory front differential, so check the notes on this page for any model or transmission limits before ordering.
What does 1-way mean? A 1-way LSD locks only under acceleration. When the driver lifts or brakes it stays open like a factory diff, so the car turns in and rotates freely off the throttle. It is the most forgiving setting for a car that is also driven on the street, and the least likely to make the car push on corner entry.
How does the Type MZ differ from the Type RS? The Type MZ uses a high-pressure cone spring that works against the activation pressure, which gives it the highest initial torque of any Cusco LSD and a linear build to full lock. The Type RS uses coil springs for a lower initial torque and smoother, quicker engagement, which makes it the friendlier choice for a street car.
Can the ramp setting be changed later? Cusco lists the setting for this unit as 1 way (1 and 1.5way). Where Cusco names an alternate or optional ramp set, the unit can be changed over when the differential is opened, so it is best combined with a differential service rather than treated as a quick change at the track.
What should I know before installing it? On a front differential the transmission must be removed and split to fit the Cusco unit, so most owners have a drivetrain specialist do it. Plan on fresh gear oil, since Cusco sells its own LSD oil for clutch-type differentials, and read the notes on this page for any extra parts Cusco says the job needs.

About CUSCO

CUSCO is the brand of Carrosser Co., Ltd., founded in December 1977 and based in Takasaki, Gunma Prefecture, Japan. Carrosser designs and builds coilovers, limited-slip differentials, clutches, roll cages and chassis parts, sells its steel cages under the Safety 21 name, and competes in every All Japan Championship category from circuit racing to rally and gymkhana. CUSCO USA, a division of Carrosser, is based in Huntington Beach, California.

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BP Pricing Difference

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Cusco Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A Mitsubishi Lancer Evolution III, Lancer Evolution II, Lancer Evolution I and Galant VR-4 [LSD 134 B]

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Cusco Type MZ 1-Way Front LSD with 1.5-Way Option for CE9A Mitsubishi Lancer Evolution III, Lancer Evolution II, Lancer Evolution I and Galant VR-4

Features

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Notes

Frequently Asked Questions

About CUSCO

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