Here are a few sources:
http://redlandhill.com/cat0_accessories.html
http://www.belarusagsupply.com/WELD-ON-LIFT-ARM-BALL-CAT-0_p_595.html
http://www.tractorpartmart.com/us/ball-end-p13174.html
http://www.stevenstractor.com/acces...-ball-joints/top-link-weld-on-ball-joint.html
http://www.xtrememotorworks.com/Parts Catalog/Cub Cadet Parts List.htm#3 Points
http://www.johnnyproducts.com/JP_Parts_HTMs/cat_0_3_point_hardware.htm
http://redlandhill.com/cat0_accessories.html
http://www.belarusagsupply.com/WELD-ON-LIFT-ARM-BALL-CAT-0_p_595.html
http://www.tractorpartmart.com/us/ball-end-p13174.html
http://www.stevenstractor.com/acces...-ball-joints/top-link-weld-on-ball-joint.html
http://www.xtrememotorworks.com/Parts Catalog/Cub Cadet Parts List.htm#3 Points
http://www.johnnyproducts.com/JP_Parts_HTMs/cat_0_3_point_hardware.htm