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SKU: LSD 141 L15 | UPC: 4996338012913
Cusco LSD RS-1.5way Rear CT9A 2001-2007 Evo 7 8 9 Non-AYC
Cusco LSD RS 1.5way provides clutch-type limited slip differential action for the rear axle on CT9A chassis Mitsubishi Lancer Evolution 7 8 and 9 non-AYC models. Power transfers evenly to both rear wheels under acceleration for quicker corner exits and planted handling on street or track. Direct bolt-in replacement boosts grip without driveline changes.
Key Features
- Clutch Pack Design: 6 drive side and 6 spider side plates deliver smooth progressive lockup under load for reliable traction in all conditions.
- 1.5 Way Operation: Full lock on acceleration and partial lock on deceleration maintains rear stability through corners and braking zones.
- Adjustable Initial Torque: Factory preset at 20 kgm adjustable to 50 kgm with preload shims to match driving preferences.
- 55 Degree Ramp Angle: Ensures fast response alongside extended clutch plate life during aggressive shifts and high torque.
- Steel Case Construction: Handles track-level abuse while preserving accurate gear alignment and durability.
Product Notes
- For non-AYC rear differentials on CT9A chassis only. Verify chassis code before purchase.
- Fill with Cusco Super LSD oil post-install for optimal clutch engagement and longevity.
- Heavy automotive component. Check packaging integrity on arrival.
Installation Notes
- Professional installation recommended.
- Remove stock differential from rear subframe. Reuse OEM bearings and carriers.
- Torque ring gear bolts to 100-120 Nm. Follow Cusco 100-mile break-in procedure.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2002 | Mitsubishi | Lancer Evolution | VII |
| 2003-2005 | Mitsubishi | Lancer Evolution | VIII |
| 2006-2007 | Mitsubishi | Lancer Evolution | IX |
Why Choose Cusco?
- Motorsport experience from Japanese drifting and rally competition teams.
- Hand-assembled with dyno testing for consistent performance.
- OEM-spec dimensions ensure direct fit and seamless operation.
Frequently Asked Questions
-
Q: Does this LSD fit AYC equipped Evos?
A: No. Built for non-AYC CT9A rear differentials on Evo 7 8 9 only. -
Q: What clutch plates are included?
A: 12 high-capacity friction plates in RS setup resist heat and provide strong grip. -
Q: What warranty applies?
A: One year against manufacturer defects. Register on Cusco website for service.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Double-boxed with foam protection, 18 x 14 x 12 inches
- Weight: 22.5 lbs
Cusco
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