Replacing LC500 torsen diff with LC500h one!
One thing to be aware of is that 2021 and newer LC 500s come with either Active Cornering Assist (ACA) or a Torsen LSD. The two are not compatible.
From the 2021 LC 500 UK press release:
Torsen Limited-Slip Differential
A Torsen limited-slip differential is also included in the LC 500 Coupe specification. This allows the driver to enjoy secure acceleration while cornering. When used in conjunction with DRS, it will simultaneously control power to the wheels in co-operation with the vehicle stability control, while the DRS controls the steering angle. The LSD will counteract over or understeer and help keep the car to its intended line. At the same time, a natural driving feel is communicated to the driver, even at the limit of performance.
Active Cornering Assist
The standard (non-Sport+ Pack) LC 500h Coupe features Active Cornering Assist (ACA), which functions within the Vehicle Stability Control to help keep the car faithful to the driver’s intended line when cornering at higher speeds. The VSC applies brake control to the wheels on the inner side of the curve to help prevent the car from spinning out. The ACA suppresses the tendency to understeer that occurs when the accelerator is pressed in high-G cornering, to achieve superior performance.
The operation of the VSC is co-ordinated with other handling and stability systems through the LC’s Vehicle Dynamics Integrated Management (VDIM) and Lexus Dynamic Handling. This allows control of rear-wheel torque and steering torque in addition to braking, in over and understeer conditions. ACA is not compatible with a limited-slip differential.
If you install an LC 500h Torsen LSD on a car that came with an open differential, there may be negative issues or conflicts with the ACA.
From the 2021 LC 500 UK press release:
Torsen Limited-Slip Differential
A Torsen limited-slip differential is also included in the LC 500 Coupe specification. This allows the driver to enjoy secure acceleration while cornering. When used in conjunction with DRS, it will simultaneously control power to the wheels in co-operation with the vehicle stability control, while the DRS controls the steering angle. The LSD will counteract over or understeer and help keep the car to its intended line. At the same time, a natural driving feel is communicated to the driver, even at the limit of performance.
Active Cornering Assist
The standard (non-Sport+ Pack) LC 500h Coupe features Active Cornering Assist (ACA), which functions within the Vehicle Stability Control to help keep the car faithful to the driver’s intended line when cornering at higher speeds. The VSC applies brake control to the wheels on the inner side of the curve to help prevent the car from spinning out. The ACA suppresses the tendency to understeer that occurs when the accelerator is pressed in high-G cornering, to achieve superior performance.
The operation of the VSC is co-ordinated with other handling and stability systems through the LC’s Vehicle Dynamics Integrated Management (VDIM) and Lexus Dynamic Handling. This allows control of rear-wheel torque and steering torque in addition to braking, in over and understeer conditions. ACA is not compatible with a limited-slip differential.
If you install an LC 500h Torsen LSD on a car that came with an open differential, there may be negative issues or conflicts with the ACA.
has anyone done this with a base, open differential LC500 with any success?
Last edited by burnthe; Apr 22, 2026 at 12:44 PM.
Here you are sir:
https://www.amayama.com/en/part/toyota/4111011050
cost 2,223.78
shipping 479.44
Tosshin also has it, but shipping is hard to estimate, they will reach out to you with cost after you place order
https://www.amayama.com/en/part/toyota/4111011050
cost 2,223.78
shipping 479.44
Tosshin also has it, but shipping is hard to estimate, they will reach out to you with cost after you place order
Rob
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