MILL SUPPLY INC 505890 Rear Sill Fleetside Ck Inc. 55-59 2ND

( Brand: Mill Supply Inc ), ( Manufacturer Part Number: 505890 )

Review MILL SUPPLY INC Inc. Rear Sill Fleetside 55-59 Chevy Gmc Ck Pickup Truck 2nd Series fits CROSS

Introducing the Mill Supply 505890 Rear Cross Sill for 55-59 Chevy and GMC CK series trucks, a high-quality aftermarket part designed to enhance the durability and style of your vehicle. This cross sill is specifically engineered to fit 55-59 Chevy and GMC CK 2nd generation pickups, offering a perfect fit and reliable performance.

The Mill Supply 505890 Rear Cross Sill is manufactured using advanced materials that deliver superior strength and resistance to corrosion. This cross sill is crafted with heavy-duty steel, ensuring it can withstand the rigors of daily use, even in harsh environments. Its robust construction makes it an ideal solution for those seeking to restore their classic trucks to their former glory or for those who require additional protection for their work trucks.

This cross sill boasts a sleek and stylish design, with its smooth finish and contoured shape blending seamlessly with the lines of your truck. It features an OE-style appearance, allowing it to maintain the authentic look of your vehicle while providing enhanced protection. The Mill Supply 505890 Rear Cross Sill is a direct replacement for the original part, ensuring a plug-and-play installation process.

Installing the Mill Supply 505890 Rear Cross Sill is a straightforward process, with no drilling or modifications required. It is designed to bolt directly onto your truck's existing mounting points, making it a convenient and hassle-free upgrade. The cross sill comes complete with all necessary hardware, ensuring you have everything you need for a successful installation.

By upgrading your truck with the Mill Supply 505890 Rear Cross Sill, you can enjoy the peace of mind that comes with knowing your vehicle is protected against the elements and the wear and tear of everyday use. This cross sill is an essential upgrade for those seeking to improve their truck's durability, style, and value. So, if you're looking to enhance your 55-59 Chevy or GMC CK series truck, the Mill Supply 505890 Rear Cross Sill is the perfect choice.

Buying a mill supply 505890 rear cross sill for a 55-59 Chevy or GMC CK2nd truck has its advantages and disadvantages. Here's a brief analysis of each:

1. OEM Quality: Mill Supply is a well-known aftermarket parts manufacturer. The 505890 rear cross sill is an original equipment manufacturer (OEM) replacement part, which means it is designed to fit and function like the original part.

2. Durability: This part is made of high-quality steel, which ensures strength and longevity. Rear cross sills are critical structural components of a truck, and a strong one can help prevent cab intrusion in case of a side impact.

3. Easy Installation: Mill Supply rear cross sills come pre-drilled and pre-painted, making the installation process easier and more straightforward than custom-made aftermarket parts.

1. Cost: OEM replacement parts can be more expensive than aftermarket alternatives. However, the durability and precise fit of the mill supply part may justify the higher cost.

2. Availability: Mill Supply parts may not be readily available at local parts stores or garages. You might need to order it online or from a specialty store, which could add to the wait time for repairs.

Buying a mill supply 505890 rear cross sill for a 55-59 Chevy or GMC CK2nd truck comes with both advantages and disadvantages. The OEM quality, durability, and easy installation make it a reliable choice for those who prioritize a precise fit and long-lasting performance. However, the higher cost and limited availability are factors to consider before making the purchase.

If you are looking for a high-quality, durable, and precisely fitting rear cross sill for your 55-59 Chevy or GMC CK2nd truck, the mill supply 505890 is a solid choice. Consider ordering it online or from a specialty store to ensure availability. Weigh the cost against the benefits and make an informed decision based on your priorities and budget.

part # 505890 prices

• $156.95-$222.95

specifications fenderfolly:

• for models: Cross
• for makes: Chevy, Gmc
• brand: Mill Supply Inc
• manufacturer part number: 505890

seller fenderfolly:

• # reviews: 28481
• rating: 99.5%

payments fenderfolly:

• wallet: Paypal
• other
• credit card: Mastercard

shipping fenderfolly:

• service: UPS Ground
• carrier: UPS
• transit: 11-17 Days
• class: Standard
• type: Calculated
• cost: $148.02

offer fenderfolly:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: December 23, 2025
• quantity: 2

returns fenderfolly:

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

general fenderfolly:

• Exterior Parts Accessories > Panels > Body Side Quarter Panels
• condition: New

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