wlfagu 4 pack square u-bolts for trailer- galvanized steel clamp set, fits 2/2.5/3/3.5/4 inch wide leaf springs, 0.5in heavy duty large diameter u-bolt (3.5in inner width) 3 1/2" inner width is up for auction in Automotive. The current bid is $1.00, 96% below the $26.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.