Quarter Panel Extension | Fastback | LH or RH | 1970 Ford Mustang

Finish the rear body lines of your 1970 Ford Mustang Fastback with a replacement quarter panel extension designed for a clean, factory-style fit. Installed at the end of the rear quarter panel around the taillight panel, it replaces a worn, dented, damaged, or missing original extension and helps restore a complete, properly finished appearance.

• Fastback-specific fitment: Designed for 1970 Ford Mustang Fastback models.
  
  
• LH and RH options: Choose the driver-side or passenger-side quarter panel extension for your repair or restoration.
  
  
• Rear quarter installation: Mounts at the end of the rear quarter panel around the taillight panel.
  
  
• Restores rear body lines: Helps complete the transition between the quarter panel and taillight panel for a clean, finished appearance.
  
  
• Direct-fit replacement: Built for straightforward installation on compatible 1970 Mustang Fastback applications.
  
  
• Replaces damaged original parts: A practical solution for worn, dented, damaged, or missing quarter panel extensions.
  
  
• Ideal for restoration and repair: Well suited for collision repair, rust repair, paintwork, or a complete Fastback restoration.

The quarter panel extension is a highly visible part of the rear bodywork on your 1970 Ford Mustang Fastback. It helps complete the area where the rear quarter panel meets the taillight panel, making proper fit and alignment important to the overall look of the car.

A damaged or missing extension can leave the rear body lines looking uneven or unfinished. This direct-fit replacement helps restore the selected side with the proper shape and factory-inspired appearance needed for a clean rear-end restoration.

Restore the rear quarter detail on your 1970 Mustang Fastback with a direct-fit extension built for proper alignment, clean body lines, and factory style.