SKU BSCA2009 BSCS2005 BSCS2006 BSCS2007 Ball Size 2” 2” 2” 2” Channel A-Frame 3” 2” 2-1/2” Capacity 5,000 LBS 3,500 LBS 3,500 LBS 3,500 LBS Installation Weld Bolt Bolt Bolt