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 3-1/2" O.D. x .065" DOM steel tube. Transmission yoke is required for balancing (not included in the 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.