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  3. CLASSIC PERFORMANCE PRODUCTS CPP CNK5559

CLASSIC PERFORMANCE PRODUCTS CPP CNK5559 Rear Frame Notch Chevrolet/gmc Set 2ND

fits make: Chevrolet, Gmc. year: 1955-59.

Cnk5559 Classic Performance Products - Cpp 1955-59 Chevrolet/gmc Rear Frame C-notch Set 2nd Series

( Brand: Classic Performance Products Cpp ), ( Part Type: Frame ), ( Manufacturer Part Number: CNK5559 )

Review CLASSIC PERFORMANCE PRODUCTS CPP Chevrolet/gmc Rear Frame C notch Set 2nd Series fits 1955-59

Introducing the Classic Performance CPP CNK5559 Rear Frame C-Notch Set, designed specifically for Chevrolet and GMC vehicles from the years 1955 to 1959. This high-quality frame notch set is an essential modification for those looking to install a wider rear end or perform other rear suspension upgrades on their classic cars.

The CPP CNK5559 set is meticulously manufactured using heavy-duty steel, ensuring superior strength and durability. Each notch is precisely cut and shaped to ensure a perfect fit for the specified vehicle models. The notches are CNC-machined to ensure a clean, smooth finish, eliminating the need for excessive welding or fabrication.

The set includes four notches, two for each side of the frame rail. The notches are strategically placed to allow for maximum clearance and ease of installation. The top notch is located just below the factory weld seam, while the bottom notch is located just above the factory crossmember. This design allows for easy integration with the factory frame and suspension components, making installation a more straightforward process.

The CPP CNK5559 Rear Frame C-Notch Set is designed to work with a variety of aftermarket suspension systems, allowing for greater adjustability and customization. It is also compatible with various rear end widths, making it a versatile solution for a wide range of classic car applications.

This set is a must-have for any classic Chevrolet or GMC enthusiast looking to perform a rear suspension upgrade or modification. With its precise fitment, heavy-duty construction, and ease of installation, the CPP CNK5559 Rear Frame C-Notch Set is a valuable investment for any classic car restoration project.

In summary, the Classic Performance CPP CNK5559 Rear Frame C-Notch Set is a high-quality, CNC-machined set of notches designed specifically for 1955 to 1959 Chevrolet and GMC vehicles. It is manufactured using heavy-duty steel and strategically placed to allow for maximum clearance and ease of installation. This set is a versatile solution for those looking to perform a rear suspension upgrade or modification, and is a must-have investment for any classic car restoration project.

A Comprehensive Analysis of Buying a CPP CNK5559 1955-59 Chevrolet/GMC Rear Frame C-Notch Set

Introduction:

The CPP CNK5559 1955-59 Chevrolet/GMC Rear Frame C-Notch Set is a popular aftermarket upgrade for classic car enthusiasts. This product allows for the easier installation of modern suspension systems, improved handling, and increased clearance for larger tires. In this analysis, we will discuss the advantages and disadvantages of purchasing this frame notch set to help you make an informed decision.

Pros:

1. Improved Handling: By installing a C-notch in the rear frame, you can lower the ride height of your classic car, which results in better handling and stability on the road.

2. Clearance for Larger Tires: With the increased ride height that comes standard on classic cars, fitting larger tires can be a challenge. A C-notch allows for more clearance, enabling you to upgrade your wheels and tires without compromising the fitment.

3. Modern Suspension System Compatibility: The CPP CNK5559 1955-59 Chevrolet/GMC Rear Frame C-Notch Set is designed to work with modern suspension systems, allowing you to upgrade your classic car's suspension for improved performance and comfort.

4. Preservation of Original Frame: By installing the C-notch in a new frame or a reproduction frame, you can maintain the original frame in its original condition, preserving its value and authenticity.

Cons:

1. Cost: The cost of purchasing and installing a C-notch set can be substantial, especially when compared to the cost of a standard replacement frame.

2. Complex Installation: Installing a C-notch set requires specialized knowledge and tools, making it a more complex and time-consuming process compared to a standard frame replacement.

3. Structural Integrity: Modifying the frame by installing a C-notch can affect its structural integrity, which could potentially impact the safety and durability of the vehicle.

4. Potential Impact on Resale Value: Some classic car enthusiasts prefer the originality of their vehicles and may not value the added modifications that come with a C-notch, potentially impacting the resale value of the car.

Conclusion:

The CPP CNK5559 1955-59 Chevrolet/GMC Rear Frame C-Notch Set offers several advantages, including improved handling, clearance for larger tires, and compatibility with modern suspension systems. However, it also comes with some disadvantages, such as the cost, complex installation, potential impact on structural integrity, and potential impact on resale value.

Recommendation:

If you are a classic car enthusiast who prioritizes performance, handling, and the ability to fit larger tires, then the CPP CNK5559 1955-59 Chevrolet/GMC Rear Frame C-Notch Set may be a worthwhile investment. However, if you value originality, ease of installation, and a lower cost, then a standard replacement frame may be a better choice for you. Ultimately, the decision comes down to your priorities and budget.

Details:

Welding and cutting is required. 1955-59 Chevrolet/GMC Rear Frame C-Notch Set 2ND Series: Adding a kit is great way ti retail ride quality on any truck lowered 4or more.The C-notch set has bare steel finish.

part #: cnk5559 price

  • $88.99

specifications lowerlageen:

  • for makes: Chevrolet, Gmc
  • for years: 1955-59
  • brand: Classic Performance Products Cpp
  • part type: Frame
  • manufacturer part number: CNK5559

returns lowerlageen:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days

shipping lowerlageen:

  • class: Standard, Expedited
  • cost: $30.53
  • service: UPS Ground, UPS 2nd Day Air, FedEx Ground / FedEx Home Delivery
  • transit: 3-7 Days
  • carrier: UPS, FedEx
  • type: Calculated

seller lowerlageen:

  • # reviews: 46261
  • rating: 99.6%
  • city: Huntington Beach, California

general lowerlageen:

  • Auto Permance Parts > Chassis, Suspension Brakes > Lower Kits Parts
  • condition: New

offer lowerlageen:

  • quantity: 1
  • started: February 24, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0

payments lowerlageen:

  • wallet: Paypal
  • credit card: Diners-club
  • other
for makes: chevrolet, gmc, for years: 1955-59, part type: frame,
category: auto parts > chassis, suspension brakes > lower kits parts, sku: 13232631301989673,

Classic Performance Products Cpp CNK5559 Is Similar To:

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1 offer $88.99 USD
  • New. Offer #1 priced at $88.99 + $30.53 delivery = $119.52* total. Welding and cutting is required. Adding a C-Notch kit is a great way ti retai ride quality on any truck lowered 4or more.The C-notch set has a bare steel finish.+$30.53 shipping

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