The ISR driveshaft configured for JZ swaps into S13 is specified for ABS-equipped vehicles with a CD009 transmission and uses an aluminum shaft. It's intended as a direct-fit driveshaft option for S13 chassis conversions that retain ABS and require CD009 coupling. The overview clarifies ABS presence and transmission type so builders can select the correct shaft for their swap.
ISR Performance Driveshaft JZ Swap (S13) ABS - CD009 Aluminum