Photo 1 of 2 Set Trailer U Bolt Kits for 3500-7000lbs - Trailer Axle U Bolt Leaf Spring U Bolts Kit - 2 3/8" Round Trailer Axle, 6 1/4" Long, 1/2” Diameter, 2.3" Thread Pitch for 1 3/4" Spring

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Photo 1 of 2 Set Trailer U Bolt Kits for 3500-7000lbs - Trailer Axle U Bolt Leaf Spring U Bolts Kit - 2 3/8" Round Trailer Axle, 6 1/4" Long, 1/2” Diameter, 2.3" Thread Pitch for 1 3/4" SpringPhoto 2 of 2 Set Trailer U Bolt Kits for 3500-7000lbs - Trailer Axle U Bolt Leaf Spring U Bolts Kit - 2 3/8" Round Trailer Axle, 6 1/4" Long, 1/2” Diameter, 2.3" Thread Pitch for 1 3/4" Spring