Designed to provide enhanced resistance to impact damage in off-road conditions with a Chevrolet Performance Steel Driveshaft. A 3 1/2-inch diameter shaft allows for increased clearance over obstacles during extreme off-road and rock crawling events. This driveshaft comes assembled with 1350 U-Joints and has a maximum rotational speed of 4,391 rpm. Installation by an authorized dealer is recommended. Compatible with SWB 4WD trucks. Includes steel driveshaft and all required fasteners.