Dorman 43-1747HD Leaf Spring Assembly - Rear

Dorman 43-1747HD Leaf Spring Assembly

Dorman 43-1747HD is a heavy-duty rear leaf spring assembly built for vehicles that carry payload and need stable suspension support. With a 10-leaf design, 3-inch leaf width, and an 8,000 load rate, it addresses rear suspension wear on applications such as Chevrolet Silverado and GMC Sierra trucks where ride height, load control, and comfort matter.

Key Features

• Heavy-duty rear leaf spring assembly for load-bearing suspension service
• 10-leaf construction for strength and consistent support
• 3-inch leaf width with a 5.322-inch pack thickness
• 8,000 load rate for demanding truck and trailer use
• Up-turned eye ends on both sides
• Black bushings included
• Steel construction for durable suspension performance
• Rear axle orientation

Detailed Description

This Dorman OE Solutions leaf spring assembly, part number 43-1747HD, is built for rear suspension applications that need dependable support under load. The steel spring pack uses 10 leaves and a heavy-duty suspension grade to help maintain vehicle stance and control when the truck is carrying cargo or towing. The up-turned eye attachment style and included bushings support proper mounting in the rear suspension system. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. For Chevrolet Silverado and GMC Sierra owners searching for a rear leaf spring assembly, Dorman 43-1747HD provides a direct replacement option based on the listed attributes.

What It Helps Address

• Sagging rear ride height from worn leaf springs
• Reduced load support in the rear suspension
• Excessive rear-end bounce or instability under cargo
• Uneven stance caused by fatigued spring packs
• Suspension noise related to worn spring bushings

Installation Notes and Tips

Verify axle orientation, leaf width, arch length, and end attachment type before installation. Confirm the rear suspension layout on your Chevrolet Silverado or GMC Sierra application and compare the existing spring dimensions to part number 43-1747HD. Because mounting hardware is not listed as included, inspect existing fasteners and related suspension components before beginning the job. Professional installation is recommended for proper alignment and safe suspension service.

Quality Assurance

Dorman OE Solutions parts are engineered as direct replacement components for specific vehicle applications. This leaf spring assembly is built to match the listed suspension attributes for rear load support and fitment accuracy.