Originally Posted by B9KOS
The kit replaces ARB. Locates front wheels better and allows adjustment of castor angle. Believe you can use with out a seperate Grp A style ARB.
Most of the 'cheaper' kits are a direct replacement for the ARB utilising the standard ARB mountings both in the TCA's and on the chassis rail.
for a much better and precise set up the ideal method would be to keep the ARB, Martin @ Reyland is looking at selling the exact kit pretty soon