RCV D8973 Ultimate 300M Front Output Shaft for Polaris RZR XP Turbo/Turbo S 2016-2021 RCV Sale! from $249.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Tweet This shaft is constructed using high-strength 300M aerospace alloy. Simply drop this shaft right into the factory gearcase assembly.