12K Trailer Slipper Spring – 6 Leaf – 30" Long – 3" Wide – Part 72-44-1 (72-44) ubk-9000-r Check Tube Size: This axle

Check Tube Size: This axle uses a 3" axle tube and includes SP-3 spring perches for that tube size

This kit is commonly used for custom axle fabrication

and required chain rating before installation

ensuring consistent stopping power and reduced maintenance

Specification Detail Ball Size 2-5/16" Application B&W Turnoverball Gooseneck hitches Finish Zinc-coated Overall Height Approximately 8-1/4" Shank Width Approximately 2-1/2" Capacity 30

12K Trailer Slipper Spring – 6 Leaf – 30" Long – 3" Wide – Part 72-44-1 (72-44) ubk-9000-r Check Tube Size: This axle6 Leaf Slipper Spring for 12,000 lb Trailer Axles 30" Long 3" Wide Part Number: 77 44 1 Heavy duty 6 leaf slipper spring designed for trailers with 12,000 lb axle capacity. Built from sturdy steel with a 30" length and 3" width, it provides strength, flexibility, and smooth suspension performance for heavy trailers. R&P Knowledge Hub Suspension Design: Slipper springs slide inside a hanger or equalizer rather than using two spring eyes. This design is