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AFCO 3780SA 37 Series Alum Twin-Tube Double Adjust Shock-8 Inch Stroke
AFCO 3780SA 37 Series Alum Twin-Tube Double Adjust Shock-8 Inch Stroke

AFCO 3780SA 37 Series Alum Twin-Tube Double Adjust Shock-8 Inch Stroke

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AFCO 3780SA 37 Series Alum Twin-Tube Double Adjust Shock-8 Inch Stroke
AFCO 3780SA 37 Series Alum Twin-Tube Double Adjust Shock-8 Inch Stroke
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We estimate this item will ship on or before February 26th.
Part # 1063780SA
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 5 business days for AFCO to ship this item.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Shock Type:
Twin Tube
Shock Body Material:
Shock Body Size:
Large Body
Shock Body Type:
Shock Stroke Range:
8.00" to 8.99"
Shock Stroke:
Sold in Quantity:


AFCOs T2 Twin-Tube Adjustable shock has many of the ground breaking features of the proven M2 series to provide unmatched control and adjustability from a twin-tube package.

  • Completely new design (adapted from the M2 shock)
  • Provides precise control on valving changes at all shaft speeds
  • Low speed sensitivity to valve changes substantially enhanced (where the shock controls the cars weight transfer forces)
  • Keeps the car planted!
  • For dirt late models.
  • Stroke: 8"
  • Compressed Length: 14.90"
  • Extended Length: 22.90"
  • Double Adjustable
  • Each shock includes a coilover kit, tuning guide and dyno sheet.
  • For dirt late models.
Late Model Swing Arm Twin Tube Shock Chart (Link)

Item Details

Compressed Length: 14.90"
Extended Length: 22.90"
Swing Arm / Z-Link Cars


  • Dirt Late Model/Crate Late Model
  • Recommended Swing Arm Twin Tube Shock
    • Left or Right Rear
      • Base, Slick, Rough Track Condition


Low Friction

Ultra smooth black shafts, low friction rod guides, piston seals, and even the fluid port's contours all combine to ensure that the shock operates as freely as possible to give the shock the best response possible.  Low friction operation not only benefits the ability to provide control, but also reduces heat buildup and provides more consistency.

Easy to Use and Accurate

The adjusters on the AFCO T2 are based on the popular M2 shock and specifically designed to make fast, precise, and repeatable changes.  The knobs are 100% o-ring sealed from the elements and easy to grasp, even with muddy, greasy, or gloved hands.  The easy-to-feel, spring loaded detents allow you to quickly change with a simple click.

Isolated Compression and Rebound Control

The T2's unique design allows for completely independent rebound and compression control.  This gives you the ability to fine-tune for maximum control.

Swiv-Align Floating Spring Seat

The design of the high tech Swiv-Align spring seat removes nearly all side forces from the shaft and makes the T2's damping smoother and more consistent than other shocks without any added expense.

Some parts are not legal for use in California or other states with similar laws/regulations

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