Suncoast 10R80 Aluminum Cylinder Reaction Shell (Hard Coat Anodized) for Ford 10 Speed Geartrain Housing PC3Z-7B177-A

Suncoast 10R80 Aluminum Cylinder Reaction Shell – Hard Coat Anodized (PC3Z-7B177-A)

The Suncoast 10R80 Aluminum Cylinder Reaction Shell is a critical internal upgrade for Ford’s 10-speed automatic transmission, engineered to restore strength, durability, and long-term reliability in demanding applications. This OEM-style reaction shell features a black hard coat anodized finish and supersedes the earlier HL3Z-7B177-D part number, making it the latest and most robust design available for the 10R80 geartrain housing.

Manufactured from high-quality aluminum, this reaction shell provides an ideal balance of lightweight construction and excellent thermal conductivity. The hard coat anodizing process significantly increases surface hardness and wear resistance, protecting the shell from friction, heat, and corrosion commonly encountered inside high-load transmissions. This makes it especially valuable for performance builds, towing applications, and preventative maintenance during 10R80 rebuilds.

The reaction shell plays a vital role in supporting the geartrain housing and maintaining proper alignment of internal components. By ensuring consistent torque distribution and structural stability, it contributes directly to smoother shifts, reduced internal wear, and improved overall transmission performance. Enhanced heat dissipation further helps control transmission temperatures, extending service life under both street and performance conditions.

• OEM Ford 10R80 aluminum reaction shell

• Hard coat anodized for superior wear resistance and corrosion protection

• Lightweight aluminum construction with excellent heat dissipation

• Helps maintain geartrain alignment and internal stability

• Improves durability and longevity of the 10R80 transmission

• Direct replacement for HL3Z-7B177-D

• Ideal for rebuilds, upgrades, and preventative maintenance

Why Upgrade the Reaction Shell

• Addresses wear-related issues that can cause rough or inconsistent shifting

• Enhances internal strength in high-load and high-heat environments

• Improves long-term reliability of the 10R80 transmission

• Recommended replacement during transmission service or rebuild

Fitment

• Ford vehicles equipped with the 10R80 10-speed automatic transmission, including:

  • Ford F-150

  • Ford Mustang

  • Ford Expedition

  • Lincoln Navigator

  • Other Ford and Lincoln models using the 10R80 platform

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