Custom built to your length requirements. This shaft features Spicer steel weld yokes with 1350 series non-greaseable, lubed for life universal joints. The shaft is 4" O.D. x .083" DOM steel tube. Transmission yoke required for balancing (yoke not included in price). Check service bulletin # 0049 for operating limits and critical speed charts. Refer to our Driveshaft Set-Up and Measuring Tips for help gathering your dimensions.