These are a great suspension upgrade for the HR-HD Holdens, they share the same geometry and components as out HKTG kit which we have achieved the title of fastest leaf spring Holden with. These are a simple install, only the old shackle mounts need to be removed with a drill. There's no cutting or welding needed at all. On road drive ability and handling is greatly improved, Axel tramp is eliminated and straight line drag racing traction hits its peak!
Kit comes complete with:
Parabolic Mono springs
Unique bolt in rear bearing sliders
Unique model specific Traction bar kit
Unique model specific bushing kit
All required bolts, nuts, washers, spacers and bushings to complete install.
"Since installing your kit, the thing just hooks and goes dead straight! Its amazing ! It has totally changed the car and has let us hit the tyres with 10psi of boost compared to 5psi we could launch at last time we raced without your kit."