1965-69 rebuilt drive shaft with performance U-joints and grease fitting: ready to bolt-in. will fit either side. This unit has been cleaned, inspected, spray painted, 2 new performance U-joints with grease fittings have been installed. Unit carries a $30 core charge, refundable upon receipt of your rebuildable core, please send core within 30 days of receiving your parts, otherwise call. Don't hesitate to call us at the shop at 918-753-2486 with any questions you might have about this unit.