Limited Slip Differential.

One of the plans before this season starts is to rebuild the rear end and replace the standard UJs and drive shafts with CV jointed ones (more on this later).

Whilst all this is going on I’m going to take the opportunity to upgrade the differential to a limited slip unit.  I’ve never done this before as it seemed a) expensive and b) more likely to make the drive shafts snap (a common problem on racing Spitfire/GT6s).

To this end, I found these BlackLine Helical LSDs for sale at RallyDesign, at a touch under £350 they’re very reasonably priced (around half the price of a Quaife unit), so I thought I’d give one a spin.

BlackLine Helical LSD

I understand that they’re made in China, so we’ll see when the unit turns up and is fitted (and actually raced).  I’m also not too worried about it sending secrets back to the Chinese government.