Custom built to your length requirements. This shaft features MW forged 7075 aluminum end yokes fitted to 4" O.D. x .100" 7075 aluminum tube using our Accu-Bond™ process. This allows fittings to be produced from high-grade aluminum to increase strength and still reduce weight. Includes 1350 series non-greaseable, lubed for life universal joints. Transmission yoke required for balancing (yoke not included in price). Check service bulletin # 0049 for operating limits and critical speed charts. Meet SFI 43.1 specifications.