Also available in the following setups: Occasional Track Day, Regular Track Day, Long Circuit Race, Short Oval Race, Sprint/Hill Climb, Rally, Drift + Others. Sierra 2WD 7inch Crown Wheel (All Models). 2WD 7inch Crown Wheel (All Models). Caterham 7 (Sierra 7inch Crown Wheel). (Sierra 7inch Crown Wheel). Not 4×4 or Cosworth. We recommend that you check for correct fitment before purchasing. Why Choose a 3J Driveline NXG Performance LSD? The NXG Plate-type limited slip differential is designed, manufactured and assembled right here in the UK. It has been engineered to be the strongest, most progressive and versatile LSD unit in the market place today. The NXG Performance bevel and planet gear pack, with its big, strong tooth profile, gives not only a smooth mesh, it also all but eliminates the rattle and excessive back lash often associated with plate-type LSD’s. Whilst the plate pack, which always runs on a minimum of 8 active surfaces (even in our lighter pre-load settings) to give maximum surface-to-surface area contact during use. Because your differential will be assembled by one of our experts here in the UK, we can set it up to suit your exact requirements. 3J Driveline Limited Slip Differentials. The standard “open” differential is ideal in most factory cars, but is far from ideal for getting the best out of your car. It will always transmit the same amount of torque to both wheels – ideal whilst both wheels have 100% grip as they both have 100% of the torque that the engine is delivering too them. But, put one of those wheels in a situation where it can slip – for example on some ice – if it only took a tiny amount of torque to make that wheel turn, exactly the same amount of power would be sent to the wheel that isn’t on ice. Hence why you’ll get one wheel spinning and one not doing anything. The same theory can be applied to cornering. As the weight of the vehicle is transferred and the tyre on the inside begins to be lifted off of the ground, the amount of engine power required to make it turn is significantly reduced and so the amount of power sent to the outside “loaded” wheel, will be exactly the same. At which point, it wouldn’t matter if you had 50bhp or 500bhp, as none of it would be getting to the wheel with any grip. To get around this an LSD can be fitted. A LSD, or limited slip diff, does as it says on the tin – limits the amount of slip of that inside wheel. It does this by essentially transferring torque directly from the housing to the side gears and thus bypassing the actually differential bevel gears. Whether it’s by the traditional method of “clutch plates”, or the more contemporary method of an additional set of bevel gears, the end result is essentially the same. (NOTE: This is NOT a TorSen, Torque Biasing or Helical Gear LSD). Assembled Differential Unit ONLY. Bearings, gears, gaskets/seals etc are NOT included. No instructions are included. Questions: We are happy to do our best to answer sensible, genuine questions during our normal office hours (Mon-Fri 09:30-17:30), however please note we do not have intimate knowledge of all makes & models or have personal experience of fitting/using all our products. Products only fit models stated (if products fit other models its in our favour to say so)! Products listed as universal fitment are not designed for any one model.