This is a firm upgrade and this conversion is capable of handling huge power increases over the AYC alternative. We used exactly the same rear diff in our 8.75 second drag Evo which was proven to over 1000bhp . The plate type LSD is also completely configurable for different applications & driving styles. Many users report consistency in the way the car feels on the limit over the computer controlled AYC unit.
Kit contents:
New RS Rear Diff Carrier (Latest & Strongest Part Number – Evo 9MR RS & X RS)
New Drive Shafts and outer Joints
Used Inner Joints in VGC
New Front Support Bracket
Used Rear Support Bracket
Mixture or new and used hardware – depending on whats in stock
These kits are a direct fit on to Evo 4-9 GSR
The 4-6 models will require the prop shaft to be shortened by approx 25mm (there should be no preload on the front diff bearing from the propshaft) – Many commercial vehicle service centres offer this service as its commonly performed on rigid HGV’s
The 7-9 models, will normally accept the GSR prop shaft with no modifications. However measurements should be taken to ensure the prop shaft is not exerting load on to the front diff bearing.
Regarding the AYC diff pump. The Pump should be left in place and the 2 feeds that went to the AYC diff should be blanked off at the pump (search “pump bung” on our site and they will come up) The hydraulic feed for the ACD should be left undisturbed.
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