This is the HPI Micro RS4 Driveshaft and Servo Arm Set. This is a replacement set intended for the micro RS4 platform. Package includes one servo arms set, two front driveshafts, one front differential housing and two output cups.
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![HPI-73404 HPI Servo Arm Set (Micro RS4) [73404] HPI](http://ultimatehobbies.com.au/cdn/shop/files/HPI-73404.png?v=1758061366&width=520)