This 8-piece porthole ring-to-hard top hardware kit is designed for 1956-1957 Ford Thunderbird models to securely fasten the porthole rings to the removable hard top. It provides an OEM-style solution for securing rings, maintaining correct alignment, and preventing vibration and water intrusion. Precision-formed components with a corrosion-resistant finish deliver long-lasting durability and a factory look, making this kit ideal for restoration projects or replacing worn, missing, or damaged fasteners. Easy-to-install pieces help restore proper fit and finish for a clean, authentic appearance.
Features:
- Fits 1956-1957 Ford Thunderbird hard top porthole assemblies.
- Complete 8-piece kit includes all ring-to-top fastening hardware.
- Precision-formed steel components with a corrosion-resistant finish for long life.
- Restores OEM fit and appearance; ideal for restoration and replacement applications.
- Helps prevent vibration, rattles, and water intrusion around porthole openings.
- Bolt-on design for straightforward installation using common hand tools.
Installation / Application:
- Difficulty: 2/5
- Estimated time: 30-60 minutes
Instructions:
- Park vehicle on a level surface and support the hard top per manufacturer guidance if removing it is required.
- Remove the existing porthole rings and hardware: carefully unscrew fasteners and set old pieces aside.
- Clean mounting surfaces thoroughly with a mild solvent or surface cleaner to remove old sealant, dirt, and corrosion.
- Inspect the hard top and porthole openings for damage; repair or touch up as needed before installing new hardware.
- If a gasket or seal is used, position it on the porthole opening per its orientation; masking tape can help hold it during alignment.
- Align the porthole ring over the opening and insert the supplied fasteners through the ring into the hard top mounting locations.
- Tighten fasteners evenly in a crisscross pattern to ensure uniform seating. If a torque specification is available, use a torque wrench to avoid over-tightening.
- Check the ring for correct alignment and fit, verify there are no gaps, and confirm the assembly does not interfere with installation of the hard top on the vehicle.
- Reinstall the hard top (if removed) and recheck for vibration or leaks during a short road test; retighten hardware if necessary.
About Redline Restomotive
Redline Restomotive® has established itself as a premier brand in the world of classic car restoration, providing enthusiasts with high-quality parts that meet the exacting standards of original manufacturer specifications. Dedicated to the preservation of American automotive history, Redline Restomotive® combines advanced manufacturing techniques with an in-depth understanding of vintage vehicles. The result is a range of products that seamlessly blend into the design and function of classic cars, giving restorers and collectors the assurance that each part reflects the era’s style, quality, and performance.
Crafted for both durability and aesthetic accuracy, Redline Restomotive® parts are ideal for those who value authenticity in their restoration projects. Whether restoring a car for display, personal enjoyment, or roadworthiness, customers rely on Redline Restomotive® for parts that not only fit perfectly but also contribute to the overall integrity and longevity of the vehicle. Each item is carefully engineered to replicate the fit, finish, and functionality of original components, making Redline Restomotive® a trusted name in restoration circles.
The extensive product catalog from Redline Restomotive® covers a wide variety of categories, allowing classic car owners to source everything from essential mechanical parts to subtle interior details. This comprehensive approach enables a cohesive restoration experience, where customers can confidently maintain both the exterior and interior authenticity of their vehicles. With Redline Restomotive®, every detail matters, providing the perfect balance between innovation and tradition for classic car preservation.
For more information or to explore their product offerings, you can visit retailers such as Muscle Cars & Classics, which feature a comprehensive selection of Redline Restomotive® products.

Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
| Make |
Model |
Years |
| Ford |
Thunderbird |
1956 - 1957 |