This Evolution limited slip is an updated and advanced version of the old popular Salisbury clutch-type LSD. It has improved clutch material and a unique design for smooth transitions between loaded and unloaded. This efficient design makes the EVO LSD easier and far more predictable to drive than the Salisbury. The plate-type diff design will not allow the wheels to loose traction even if one of them loses contact with the track surface. Ramp angles are 45/90 so the diff unlocks on deceleration for easier turn in. This 'race' version of the EVO LSD is pre-set for full race applications, ramp angles are 45/90. Used now by all top racers for more than 10 years without failures - beware of copies. Ours look good enough to sit on the coffee table and now has been further developed with higher spec material for the housings to allow for inconsistencies in the diff roller bearings. To install you will have to remove some metal from gearbox and diff casings, but less than with the old Salisbury. Additional parts required to fit a limited slip diff including output shafts and unique final drive gears.
This diff is set up to break loose at about 65-75 foot pounds of torque, which is appropriate for a vintage Mini race car. If fitted to a race car using wide wheels and slicks, such as a GT5 car, you may want to modify the diff to achieve a higher break-away spec. This is done by machining the diff case. If you ever need to take the diff apart you must take the pre-load off with a press and then the 3 screws will come out easily.
To install you will have to remove some metal from gearbox case and diff cover, but less than with the old Salisbury.