Speedway Motors 3" Axle Tube Adjustable Leaf Spring Kit: CNC-Machined Perch, Shock Mount, U-Bolts, Tire Clearance & Centering for 55-'86 Chevy V8, Set of 16

Leaf Spring Pads Weld-on, universal leaf spring pads for 3-inch diameter axle tubes. Accommodates standard width 2-1/2-inch leaf spring assemblies. Offset key inserts permit adjustment of axle housing position fore and aft on leaf spring. Inserts work with all standard leaf spring locating pins. Allows centering of rear wheels in the body opening to provide maximum clearance. Inserts sit in machined pocket of spring pad, allowing them to be easily swapped out. Includes 1/4-inch offset, 1/8-inch offset, and 0 offset keys that provide up to a 1/2-inch of adjustment. Crafted from .250-inch steel plate and precision laser cut and CNC machined. Bare steel construction ready for welding to your cleaned and prepped axle tubes. Shock Mounting Plates Steel leaf spring lower shock mounting plate. Eases the mounting of rear shocks. Accepts 2.5" leaf spring. Bolt holes are 3-5/8" apart center to center. Bolt holes are 3-1/8" center to center on flange sides. Bolt holes are 9/16" I.D. Single shock boss. U-Bolts Speedway leaf spring axle U-bolts are a great replacement for worn out stock bolts and feature a generous length to accommodate lowering blocks (sold separately) to adjust your ride height. U-bolts are zinc-plated steel to ensure long life and durability. All bolts are 1/2" diameter with 1/2"-20 threads. Fits rearend housings with 3" diameter axle tubes. Works with 3" diameter axle tubes. 8" overall length. 6" thread length. 1/2"-20 thread pitch. Includes nylock nuts. Set of 4

• Adjustable Positioning: Equipped with multiple adjustable keys to adjust rear axle housing up to 1/4” forward or rearward, ensuring maximum tire clearance and proper wheel centering in the wheel well.
• Durable Construction: Leaf spring pads crafted from .250-inch steel plate, precision laser cut and CNC machined. Shock mounting plates are made of sturdy steel, making them both reliable and easy to mount.
• Comprehensive Kit Contents: The package includes (4) 8-inch long Leaf Spring U-Bolts for 3 Inch Axle Tubes, Speedway Leaf Spring Lower Shock Mounting Plates (left and right), and a pair of Weld On Adjustable Leaf Spring Pads.
• Versatile U-Bolt Features: The U-bolts are zinc-plated for longevity and fit rearend housings with 3" diameter axle tubes. They come with a 6" thread length and are inclusive of nylock nuts.
• Innovative Design Solution: Offset leaf spring pads offer an intuitive solution for correcting axle housing positioning issues, with potential applications across a broad range of popular axle housings.