RSX base 5-lug front knuckles/hubs, rear knuckles and rear disc brakes (5-lug conversion)
into Civic

Important caveats

• RSX Type-S front knuckles and hubs do not spline to the Civic axles. Use base RSX knuckles unless the car has a K-swap with matching axles.
• Lower control arms: the RSX lower ball joint is about 2 mm longer than the Civic one. One guide fits RSX front lower arms or packs the stock arms with tapered washers. The other says the arms must be changed on 2001–2002 cars, again with tapered washers as the alternative. Don't run the stock arms without one of these fixes; the guide warns of play and loose suspension.
• On 2001–2002 cars the strut-to-knuckle bolts differ. Either fit later struts and bolts or drill the strut holes for the larger bolts.
• Neither guide gives RSX model years for the base knuckles. MotoIQ notes that 2005–2006 RSX Type-S knuckles have a larger ball-joint stud, so check base 2005–2006 parts against your arms before buying.
• The rear needs RSX rear calipers, hoses and parking brake cables as well as the knuckles. Drum-brake rear parts can't be reused.
• ABS: the guides disagree on whether the Civic ABS sensors keep working. One owner reports ABS still worked with the Civic sensors; the other guide points to the RSX Type-S ABS parts. Confirm the ABS light is out and ABS works before driving on the road.