The XRAY 364912 composite gear differential case brings a heavy-duty option to XB4 drivetrains. Constructed from high-strength composite, it accepts large-volume gear diffs and is suitable for installation in either the front or rear positions.
Engineered to resist wear under regular running, this case helps keep diff behaviour consistent over time. The larger capacity supports a range of tuning choices for handling on different track surfaces.
This unit is made to match the XB4 2020 Specs (360007) and works as a direct upgrade or replacement. The precise moulding reduces fitment fuss and gets you back on the track faster.
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