GM U-Bolt Plates (2.5" Springs)

GM U-Bolt Plates (2.5" Springs)

Heavy-duty U-bolt top plates for GM leaf spring setups — built for strength and flexibility.

These top plates are designed around the standard 2.5" wide GM leaf spring, but they’ll also work great with springs up to 2.75" wide. Each plate is laser-cut from 3/8" HR P&O steel and sized to fit axles from 2.5" to 4" in diameter. We include three spring pin location options for custom positioning and fitment flexibility.

They’re compatible with both 9/16" and 5/8" U-bolts, though we always recommend 5/8" for maximum strength — no point in using smaller hardware when the cost and effort are the same.

Key Features:

• Part Number: R1159
• Designed for 2.5" to 2.75" wide leaf springs
• Fits axle tube diameters from 2.5" to 4"
• 3/8" HR P&O steel construction
• 3 spring pin hole positions for custom setups
• Compatible with 9/16" to 5/8" U-bolts (5/8" recommended)

What's Included in the Kit:

• (2) U-bolt top plates

Note:

Sold in pairs. Built to handle abuse in heavy off-road use, axle swaps, or custom suspension work. Make sure to match your U-bolts and spring pack width for a proper fit.