Product Details: Get your semi Ready for the Road Aheadâ„¢ with enhanced driveshaft protection, with the Spicer 4" x 0.095" Welded Straight Steel Driveshaft Tubing. With a sophisticated design, this replacement tubing encloses the internal components of the driveshaft or PTO driveshaft to deliver improved support while guarding against water, dirt, and debris. Manufactured with an ultra-strong and durable body.