Dorman 43-1717HD Rear Leaf Spring Heavy Duty Replacement for Ford F-250 F-350 F-450 Super Duty

The Dorman 43-1717HD is a heavy-duty replacement rear leaf spring engineered for Ford F-250, F-350, and F-450 Super Duty trucks. This spring is designed to restore proper suspension tension, ride height, and load-carrying capacity lost due to sagging, fatigue, cracking, or corrosion in the original spring. The "HD" heavy-duty aftermarket designation offers enhanced performance over the standard 43-1717 variant, making it an ideal choice for trucks used in demanding work or towing applications.

Key Features:

• Two-stage, multi-leaf pack design — features a 5-leaf primary pack plus 1 auxiliary leaf for a progressive spring rate that handles both light loads and maximum payload
• 3.8125-inch pack thickness with an average load capacity rating of approximately 6,800 lbs
• Black powder-coat finish — provides corrosion resistance to extend service life in harsh conditions
• Rubber bushings included — pre-assembled bushing hardware is included for a complete, ready-to-install repair
• OEM-matched fit and function — engineered to match original equipment specifications for proper ride height and suspension geometry
• Rigorously tested — undergoes corrosion resistance and fatigue testing to ensure long-term reliability
• OEM cross-reference: Ford part number 7C3Z5560J
• Sold individually

Worn or broken rear leaf springs on heavy-duty pickups can cause uneven ride height, poor load distribution, and unsafe handling. The Dorman 43-1717HD restores the suspension system to proper working order using quality steel construction built to original specifications. Consider pairing this spring with matching shackles for a complete rear suspension repair.