Heavy Duty Series 4 PTO Shaft that Will fit Most Finishing Mowers1-3/8" 6 Splined (540) on Both Ends with Push Button LockClosed Measured 40" OverallMin Working Length is 41"Max Working Length is 55"Overall Length is 61.6"If the Shaft is Too Long, you Can Always Cut Some OffAlways keep a 1/3 of the shaft inside the tube when operatingWe Carry All Replacement Parts for All Items Will Sell, If You Don't See What You Need, Call Us at (478) 237-5848!