This driveshaft has several advantages. The most important is the 32 spline front. Tests have shown that the normal 16 spline driveshaft binds in the u-joint assembly under load. The 32 spline reduces bind and glides effortlessly. Gundrillingfrom solid stock makes this driveshaft very strong & very light. The weight is comparable to titanium at the price of steel. If you race at a track or series that doesn't allow titanium, this is the lightest driveshaft you'll find. The large diameter results in less driveshaft whip, extended u-joint life, & reduced driveshaft vibration. This all helps to keep the driveline more free. 32-spline driveshaft is available for swivel or internal coupler.