BLACKLINE FOR BMW 1 3 SERIES E82 E87 E46 E90 E92 Z4 188K LSD LIMITED SLIP DIFF

This is for Vehicles Fitted with 188K differential. PLEASE NOTE the 168 Small Case as well as the 168, 168L,  188, 188L, 210 etc are commonly used in the BMWs.

PLEASE CHECK the One Purchased is correct for your vehicle as different cases can fit the same vehicle. 

Suits 3.15 , 3.23 , 3.38 , 3.46 , 3.64 Ratios

We can provide a diagram for you to check.

Suits:-

• BMW E82 123d Auto / 125i / 128i Manual / 135i Auto
  BMW E87 118d Auto / 120d Auto 03/2007-09/2008 / 123d Auto / 130i / 
  BMW E46 318d Auto / 320i Manual with 188L Casing / 323i Auto / 325i / 325ti / 325xi / 328i 3.46:1 ratio / 330i Auto
  BMW E90 320d Auto with 7591017 Diff / 320d Manual with 7591074 Diff / 320i with 188K Casing / 325i Auto / 328i Auto / 325i Manual with 7591015 Diff / 328xi Manual / 330i / 335i Auto with 7572055 Diff / 335xi Auto / 
  BMW E92 320d Auto with 7591017 Diff / 325i Auto / 328i / 325i Manual with 7529109 & 7591015 Diff / 330i / 335i Auto with 7572055 Diff / 335xi Auto / 
  BMW E39 520i Manual / 523i
  BMW E60 520d Auto / 520i / 525i Auto / 525i SMG / 530i Auto / 535i Auto / 535xi Auto
  BMW F10 535i Auto / 535i Manual
  BMW E63 630i
  BMW E38 728i Auto
  BMW F01 740i - Check Diff Fitted / 740li - Check Diff Fitted
  BMW E83 2.0d Auto Rear / 3.0i Manual Rear
  BMW E53 3.0i Manual Rear Diff / 4.4i Auto Rear Diff / 4.6is Auto Rear Diff
  BMW E70 3.0d Auto Rear
  BMW E85 Alpina Roadster S 3.4 / 2.5i / 3.0si / 2.5si SMG / 3.0i Auto
  BMW E89 2.3i S Drive / 3.0i S Drive

Not suitable for 168, 168L,188, 188L 210 Differentials - also available in our shop

Helical LSD Advantages:-

• Equal rotational speed to both wheels
• Torque distributed according to traction
• Minimal service requirements - no clutches
• Quick reaction compared to viscous LSDs
• Gentle and progressive engagement, low noise
• Easily controlled power take-off and drifting
• Gears and body manufactured from 8620 alloy steel
• Direct replacement into stock differential

Blackline Helical LSD's - How They Work

The Blackline helical LSD's are torque biasing, that is they distribute torque between the wheels, loading more torque towards the wheel with the best traction thus improving performance and driveabitily. Especially in low grip situations.

The helical gearing manages the distribution of friction within the LSD. When torque is applied to the helical gear system it creates force that pushes the gear into the differential body, thus creating friction. Increases of torque, increases the thrust force directly proprotional to the amount of torque. This allows the Blackline LSD to cope with considerable traction imbalance even under heavy power conditions, as would be the case on exiting a powered up corner. But at low torque conditions the LSD can differentiate quietly and smoothly, thus making the differential very suitable for normal road driving. The Blackline LSD uses the popular parallel axis helical geared configuration optimised for even load distribution. They are designed with a torque bias of 5:1 this means that if  one wheel loses traction then the wheel with the most grip can receive five times as much torque as the wheel that is slipping. However, five times zero is still zero, so all these helical LSD's work best when both wheels are 'planted' and some traction is still available on the slipping wheel. In practice this is rarely a problem as there is always some 'drag' on the slipping wheel, however some drivers expertly use left foot braking to partially lock the spinning wheel.

Note - Helical LSD's work especially well when combined with modern anti-lock braking systems.

You are buying the Assembled differential unit only, no bearings, gears or gaskets will be included.