Wisefab Rear Drop Knuckle Kit, Subaru Impreza / WRX / STI and Forester 1992-2007 (WFGD4)

Rear uprights for Imprezas and Foresters being used for grip racing. Lowering upsets the factory geometry; these knuckles bring roll centre, bump steer, anti-squat and the camber curve back into range, with a 50 mm roll centre correction built in.

Fits

• Subaru Impreza (GC), 1992-2001: Includes WRX and STI
• Subaru Impreza (GD), 2000-2007: Includes WRX and STI
• Subaru Forester (SF), 1997-2002
• Subaru Forester (SG), 2002-2007

Before you order

• Requires the 2000-2007 WRX/STI 72x42x52 wheel bearing, with either the 5x100 hub (28462FE001) or the 5x114.3 hub (28462FE011).
• The factory handbrake can be used, but the brake caliper tabs must be removed for clearance.
• Works with factory shocks and springs; the benefit is bigger with lowering springs or coilovers. The original wheel speed sensor can be reused.

Highlights

• 50 mm drop built into the knuckle for roll centre correction
• About 1 kg lighter than the factory upright
• Brake caliper tabs moved onto the upright for a stiffer caliper mount (factory mounts to the dust shield)
• CrMo spherical bearing replaces the traction link bushing

In the kit

• Knuckles with hardware
• Installation guide