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AFCO 3790L 37 Series TwinTube Adj Shock-9"-LR4 Link-Spring Behind
AFCO 3790L 37 Series TwinTube Adj Shock-9"-LR4 Link-Spring Behind

AFCO 3790L 37 Series TwinTube Adj Shock-9"-LR4 Link-Spring Behind

Dirt Late Model, Micro Sprint, Midget, Mini Sprint, Twin Tube Shock Type, Rear Left Position

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AFCO 3790L 37 Series TwinTube Adj Shock-9"-LR4 Link-Spring Behind
AFCO 3790L 37 Series TwinTube Adj Shock-9"-LR4 Link-Spring Behind
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We estimate this item will ship on or before December 17th.
Part # 1063790L
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Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 3 business days for AFCO to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.


Shock Type:
Twin Tube
Shock Adjustability:
Double Adjustable
Shock Body Material:
Shock Body Size:
Large Body
Shock Body Type:
Shock Stroke Range:
9.00" to 9.99"
Shock Stroke:
Rear Left
Upper Shock Mount:
1/2" Spherical Rod End
Lower Shock Mount:
1/2" Spherical Rod End
Extended Length:
Compressed Length:
Extended Length Range:
24.00" to 24.99"
Compressed Length Range:
15.00" to 15.99"
Coil-Over Compatible:
MFG. Part #:
Sold in Quantity:


AFCO's 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.

  • Stroke: 9"
  • Compressed Length: 15.90"
  • Extended Length: 24.90"
  • Double Adjustable
  • Provides precise control on valving changes at all shaft speeds
  • Low speed sensitivity to valve changes substantially enhanced (where the shock controls the car's weight transfer forces)
  • Keeps the car planted!
  • For dirt late models/crate late models
  • Each shock includes a tuning guide, dyno sheet and a coil-over kit

Late Model 4-Link Twin Tube Shock Chart (Link) 


  • Dirt Late Model/Crate Late Model
  • Recommended 4-Link Twin Tube Shocks
    • Left Rear Behind Shocks
      • Base, Slick, Rough Track Condition


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.

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.

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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