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AFCO 3840BG Big Gun Rear Twin Tube Coil-Over Shock, 4 Inch Stroke

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AFCO 3840BG Big Gun Rear Twin Tube Coil-Over Shock, 4 Inch Stroke
AFCO 3840BG Big Gun Rear Twin Tube Coil-Over Shock, 4 Inch Stroke

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AFCO 3840BG Big Gun Rear Twin Tube Coil-Over Shock, 4 Inch Stroke

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What's in the Box

The Big Gun Double Adjustabe T2 Twin Tube shocks are specifically valved for high horsepower applications. Both small tire and big tire cars can better control the “hit” to the tire with this series of shocks. Don’t “drive thru” your shocks with that big power — choose this series of shocks for the ultimate control off the line. Mount the shock upside-down for easier access to the rebound adjuster.
  • Double Adjustable - broad range of adjustment
  • Big Gun Valving - specifically valved for high horsepower applications
  • Great for BIG or SMALL tire door slammers
  • Shock of choice for 4-Link Dragsters
  • Large piston provides superior launch stability
  • Gas pressure eliminates cavitation and allows shock to recover faster
  • Body Mount: 1/2" I.D. Bearing (1.060" wide)
  • Shaft Mount: 1/2" I.D. Bearing (1.060" wide)

Includes coil-over kit. Coil spring NOT included.

Application

Designed for the following classes:

  • Outlaw 10.5
  • Top Sportsman
  • Big Dog
  • Super Quick
  • Pro Mod
  • Pro 5.0
  • SSO
  • Drag Radial & Others

Item Details

10.9" Comp, 14.9" Ext, 8" spring height
12.25"-13.25" @ ride height

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There's a lot riding on your springs-literally. Springs are your car's connection to the ground, and their performance is directly related to all other suspension components. Inconsistent, weak springs can cause a multitude of handling problems, and in some cases, dangerous situations. When it comes to choosing coil springs there are many alternatives, but if you want the best you can get, the choice is clear: choose Afcoils. 

All Afcoils carry a lifetime warranty to remain within 2% of the original nominal free height. Choose your length and rate. 

  • Machine-ground on both ends to tolerances within 1 degree
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  • Optimized material thickness and coil spacing
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Afcoil Spring Rate Guide (GIF)

AFCO 3240BG Big Gun Rear Coilover Shock-Canister Series, 4 Inch Stroke
                        

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  • Body Mount:  1/2" I.D. Bearing (1.060" wide)
  • Shaft Mount:  1/2" I.D. Bearing (1.060" wide)
  • Double Adjustable - broad range of adjustment
  • Big Gun Valving - specifically valved for high horsepower applications
  • Great for BIG or SMALL tire door slammers
  • Shock of choice for 4-Link Dragsters
  • Large piston provides superior launch stability
  • Gas pressure eliminates cavitation and allows shock to recover faster

Includes coil-over kit. Coil spring NOT included.

AFCO 3835 Eliminator Coil-Over Shock, Single Adjustable, 3 Inch Stroke
                        

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Single (Rebound) Adjustable shocks are an economical alternative that gives you the ability to adjust rebound dampening control without affecting the compression dampening characteristics of the shock.

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  • Almost no "stiction" to interfere with putting the power down
  • Bearing mount ends reduce suspension binding
  • Includes all hardware to mount a 2-5/8" spring
  • Body Mount:  1/2" I.D. Bearing (1.060" wide)
  • Shaft Mount:  1/2" I.D. Bearing (1.060" wide)

How to Choose Shock Length (GIF)

Note: Coil spring NOT included.