Double Adjuster Tube Adapter 1 1/4-12 LH Thread;Tube ID: 1 3/8;Ideal for link suspension designs with weld on bushings/joints at one end or bent suspension links;Made from solid stock 1018 Steel;Adapters Include: (1) Weld on Tube Adapter with Pinch Bolt Slit and Tubes, (1) Zinc Plated Double Adjuster Sleeve to be used with a Thread Shank Rod End, and (1) Pinch Bolt Hardware;Welding required;Made in the USA Synergy Manufacturing Synergy Manufacturing Double Adjuster Tube Adapter - 628566 3620-12-13 Tube Adapters