This listing is for one Redline APUBR-8 U-Bolt Kit for Mounting 3,500 to 7,000Lb Round Trailer Axles.

This kit has everything you need to mount your trailer's leaf springs to a 3" round axle.

Kit includes:

• (4) 7" Long U-bolts
• (2) U-Bolt plates
  
• (8) 1/2-20 Hex nuts

L: 7" A: 3" D: 1/2"

Note: Spring seats required for mounting axle to leaf spring sold separately. Typically fits a 3,500lb axle.