The JR-TA703-LB is a blue-anodized aluminum rear upright hub carrier built for the TAMIYA TA07 chassis. It secures the wheel hub and connects steering and suspension linkages; the switch from plastic to alloy increases stiffness and can lead to more consistent roll behavior and edge grip during setup work.
To fit, follow standard TA07 maintenance: remove the rear upright assembly, replace the factory carriers with the aluminum pieces, and refit using the original wheel hub hardware. After installation check hinge pin alignment, confirm camber and toe, and complete a few cautious laps to verify any changes in handling before pursuing further setup changes.
For chassis setup the part provides a firmer anchor for adjustable suspension geometries, improving repeatability across shock mount, roll center, and camber link adjustments.
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