Round U-Bolt Kits
Round-tube U-bolt kits by axle diameter and weight rating.
1 ¾" tube (2k)
For 2,000 lb axles with 1¾" round tube.
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2 3/8" tube (3.5k)
For 3,500 lb axles with 2 3/8" round tube.
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3" tube (5.2k–7k)
For 5,200–7,000 lb axles with 3" round tube.
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3.5" tube (8k)
For 8,000 lb axles with 3.5" round tube.
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4" tube (9k)
For 9,000 lb axles with 4" round tube.
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5" tube (10k–12k)
For 10,000–12,000 lb axles with 5" round tube.
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