J.C. Whitney JC57010004 Truck Bed Support Repair Panel Rear Lower Left Driver Side with Body Cladding

The J.C. Whitney JC57010004 is a replacement truck bed support repair panel designed for the rear lower section of the driver side (left hand) on Chevrolet Avalanche models equipped with factory side body cladding. Constructed from 1.2mm stamped steel, this repair panel is engineered to restore the structural integrity and appearance of the lower bedside area that sits behind the plastic body cladding trim.

The exterior body panel located directly above the rear tire is one of the most vulnerable areas on a vehicle — the rear tire throws road debris against this area, and over time road salt and moisture penetrate and cause rust damage. This panel provides a cost-effective alternative to full bedside replacement.

Key Features:

• Steel construction — 1.2mm stamped steel meets OEM panel thickness standards
• Driver side (LH) — Rear section, lower position
• Body cladding compatible — Designed specifically for Avalanche models equipped with factory side body cladding
• Finished in black e-coat primer for corrosion resistance and paint-ready surface
• Requires cutting out the damaged metal and welding this repair section into place
• Sold individually

This panel targets the common rust-prone lower bedside area, located behind the plastic side body cladding, making it ideal for restoring vehicles with corrosion damage without the cost of replacing the entire bedside panel assembly.