AFCO 3870BG Big Gun Rear Twin Tube Coil-Over Shock, 7 Inch Stroke
Universal Fit, Rear Position, Twin Tube Shock Type, Double Adjustable Shock Adjustability
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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)
- Comes with coil-over hardware for a 2 1/2" or 2 5/8" id x 14" tall spring sold separately.
Includes coil-over kit. Coil spring NOT included.
13.9" Comp, 20.9" Ext, 14" spring height
15.50"-18.50" @ ride height
Designed for the following classes:
- Outlaw 10.5
- Top Sportsman
- Big Dog
- Super Quick
- Pro Mod
- Pro 5.0
- Drag Radial & Others
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Q & A
In this episode, Project Chevelle gets coilovers and a much-needed altitude adjustment. Watch as we install QA1 bolt-on coilover kits front and rear, then dial in the perfect stance and shock settings. Our old Chevelle is really starting to look mean!
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Tim talks about what options we have for hot rod shocks.
Speedway Motors employee Steve is back to work on his 1976 Chevrolet Laguna, this time installing a QA1 Coilover kit in his front suspension.
Speedway Motors shares a How-To of selecting the right coilovers for your T-Bucket.
Check out this coil-over mounting guide to learn about determining your spring rate, compensating for mounted angle, and measuring a replacement shock accurately.
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