This kit has everything you need to mount your trailer's leaf springs to a 3" round axle. • (4) 7" Long U-bolts   • (2) U-Bolt plates for 1-3/4" or 2" leaf springs     • (8) 1/2-20 Hex nuts    L=7"   A=3"   D=1/2" Typically fits a 5,200lb to 7,000lb axle.  Spring width: 1-3/4" or 2"

» Spring seats on axle required for mounting axle to leaf spring sold separately.