For precise setup work on the SDX chassis, the Serpent 500623 Aluminum Rollcenter Spacer is a compact tuning part. This 2mm aluminium shim fits under the differential to change the vehicle roll centre without heavy mods.
Using one or two spacers lets you vary the lift in small steps so you can test handling differences. Raising the roll centre tends to add steering authority and front grip, but may require softer inputs as the car responds faster.
Make sure the Serpent 500623 seats solidly and that the differential remains correctly positioned. You may need to adjust the rear stiffener or tweak plate spacing to preserve drivetrain alignment after installation.
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