Brand New Rear Driveshaft Assembly Aluminum Allows Replacement of a Damaged Rear Driveshaft Rear Driveshaft w/Splined Transmission Slip Yoke and Serviceable U-Joints, Length:86.87 in Compatible With 2018-2021 Chevrolet Express 3500 (Rear; RWD; V6 262 4.3L; Automatic Trans.; 8 Speed Trans.; 139.0 Inch Wheelbase; with RPO Code GU6 (3.42 Axle Ratio) Compatible With 2018-2021 GMC Savana 3500 (Rear; RWD; V6 262 4.3L; Automatic Trans.; 8 Speed Trans.; 139.0 Inch Wheelbase; with RPO Code GU6 (3.42 Axle Ratio) See Compatibility Chart To Verify Your Specific Vehicle Year, Make, & Model Replaces 84675734