AFCO Racing 81 Series Monotube Shock 3C-4R — Fits GM A-Body G-Body Rear

SKU: DJGV_81-2-3-4
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AFCO Racing 81 Series Rear Shock (3C-4R)Complete your suspension upgrade ...Read More

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

AFCO Racing 81 Series Rear Shock (3C-4R)

Complete your suspension upgrade with the AFCO Racing 81 Series rear shock, specifically valved for the rear of GM A-Body and G-Body vehicles. The 3C-4R valving provides the perfect balance of traction and control, ensuring your rear end stays planted during hard launches or tight cornering. Built with a 1.50-inch OD steel body and a sleek black finish, this shock is designed to perform under extreme conditions while maintaining a clean look.

Technical Features

  • Valving: C3-R4 optimized for rear suspension dynamics
  • Monotube Design: Advanced damping for consistent performance
  • Dimensions: 13.97 in compressed / 19.27 in extended
  • Durability: Heavy-duty steel housing with black paint
  • Fitment: Designed for GM A-Body and G-Body rear applications

Rear suspension performance is critical for putting power to the ground, and the AFCO 81 Series delivers exactly that. The monotube construction prevents shock fade, which is a common issue with inferior twin-tube designs during aggressive driving. By upgrading your rear shocks, you will notice improved stability, reduced wheel hop, and a more composed ride overall. Whether you are building a drag car or a street-performance cruiser, these shocks provide the reliability and performance you need. Get the best in suspension technology for your vehicle at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

AFCO Racing 81 Series Rear Shock (3C-4R)

Complete your suspension upgrade with the AFCO Racing 81 Series rear shock, specifically valved for the rear of GM A-Body and G-Body vehicles. The 3C-4R valving provides the perfect balance of traction and control, ensuring your rear end stays planted during hard launches or tight cornering. Built with a 1.50-inch OD steel body and a sleek black finish, this shock is designed to perform under extreme conditions while maintaining a clean look.

Technical Features

  • Valving: C3-R4 optimized for rear suspension dynamics
  • Monotube Design: Advanced damping for consistent performance
  • Dimensions: 13.97 in compressed / 19.27 in extended
  • Durability: Heavy-duty steel housing with black paint
  • Fitment: Designed for GM A-Body and G-Body rear applications

Rear suspension performance is critical for putting power to the ground, and the AFCO 81 Series delivers exactly that. The monotube construction prevents shock fade, which is a common issue with inferior twin-tube designs during aggressive driving. By upgrading your rear shocks, you will notice improved stability, reduced wheel hop, and a more composed ride overall. Whether you are building a drag car or a street-performance cruiser, these shocks provide the reliability and performance you need. Get the best in suspension technology for your vehicle at GGCRACING.

Product Details

Product Description

AFCO Racing 81 Series Rear Shock (3C-4R)

Complete your suspension upgrade with the AFCO Racing 81 Series rear shock, specifically valved for the rear of GM A-Body and G-Body vehicles. The 3C-4R valving provides the perfect balance of traction and control, ensuring your rear end stays planted during hard launches or tight cornering. Built with a 1.50-inch OD steel body and a sleek black finish, this shock is designed to perform under extreme conditions while maintaining a clean look.

Technical Features

  • Valving: C3-R4 optimized for rear suspension dynamics
  • Monotube Design: Advanced damping for consistent performance
  • Dimensions: 13.97 in compressed / 19.27 in extended
  • Durability: Heavy-duty steel housing with black paint
  • Fitment: Designed for GM A-Body and G-Body rear applications

Rear suspension performance is critical for putting power to the ground, and the AFCO 81 Series delivers exactly that. The monotube construction prevents shock fade, which is a common issue with inferior twin-tube designs during aggressive driving. By upgrading your rear shocks, you will notice improved stability, reduced wheel hop, and a more composed ride overall. Whether you are building a drag car or a street-performance cruiser, these shocks provide the reliability and performance you need. Get the best in suspension technology for your vehicle at GGCRACING.

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