Rust Buster Center Rear Frame Repair Kit for 2004–2008 Ford F-150 Crew Cab 5.5 ft Bed (Driver Side) - RB7071L

The Rust Buster RB7071L Center Rear Frame Repair Kit is a driver-side replacement frame section designed for 2004–2008 Ford F-150 Crew Cab models with the 5.5 ft bed. This kit replaces the frame area between the rear cab mount and rear fuel tank crossmember and is compatible only with trucks using a bolt-on front bed mount—not welded-on assemblies. Built from heavy-duty 11-gauge steel, this 16.00-inch frame repair component includes the forward leaf spring mount and features laser-cut precision and factory hole locations for alignment. Ships raw with a protective oil coating. Welding required.

Product Features

• Fits 2004–2008 Ford F-150 Crew Cab (5.5 ft bed)

• Designed for trucks with bolt-on front bed mount only

  • Not compatible with welded-on front bed mounts

• Driver-side (left) frame repair section

  • For passenger side, see RB7071R

• Replaces frame section between rear cab mount and rear fuel tank crossmember

• Includes forward leaf spring mount

• Measures 16.00" in length

• Made from heavy-duty 11-gauge steel

• Laser-cut finish for accurate fitment

• Includes factory-style holes for alignment

• Ships raw with protective oil coating to prevent oxidation

• Welding required

• Recommended for use with Rust Buster Rust Converter Paint RB9917

• Backed by a Lifetime Warranty

Product Details

• Brand: Rust Buster

• Part Number: RB7071L

• Product Type: Center Rear Frame Repair Section (Driver/Left Side)

• Material: 11-gauge steel

• Length: 16.00"

• Installation: Welding required

• Coating: Raw steel with protective oil coating

Fitment

• 2004 Ford F-150 Crew Cab (5.5 ft bed)

• 2005 Ford F-150 Crew Cab (5.5 ft bed)

• 2006 Ford F-150 Crew Cab (5.5 ft bed)

• 2007 Ford F-150 Crew Cab (5.5 ft bed)

• 2008 Ford F-150 Crew Cab (5.5 ft bed)

• Truck must have bolt-on front bed mount

Additional Information

F-150 trucks are known for reliability, capability, and long-term durability—but frame corrosion can compromise structural integrity. The RB7071L replaces a high-risk rust area while maintaining OE geometry and alignment. Rust Buster designs every frame repair component using advanced scanning and CAD modeling for exact fitment and dependability. With heavy-duty steel construction and a Lifetime Warranty, this repair kit restores the strength needed to keep your F-150 on the road