Afco 3870R-1 Coil Over Shock
Afco Eliminator Big Gun BG/BGX GM Mid Size Rear Double Adjustable Coil Over Shock 3870R-1 - Image 2
Afco Eliminator Big Gun BG/BGX GM Mid Size Rear Double Adjustable Coil Over Shock 3870R-1 - Image 3
Afco 3870R-1 Coil Over Shock

Afco Eliminator Big Gun BG/BGX GM Mid Size Rear Double Adjustable Coil Over Shock 3870R-1

$524.99 Each - Free Shipping

This Eliminator Double Adjustable drag shock features independent compression and rebound valving ranges (Double Adjustable). Equipped with Big Gun or Big Gun X extension valving for High HP Applications. Fits rear stock location of many GM cars and trucks, some clearancing may be required for Upper Tie-Bar Mount.

  • Optional Big Gun (Slick) or Big Gun X (Radial) Valving Options
  • Stroke: 7″
  • Uses 14″ Long Coil Over Springs (Available Separately)
  • Length Compressed: 14″
  • Length Extended: 20.90″
  • B2 Tie Bar Body Upper Mount
  • S2 1/2″ ID, 5/8 Wide Bearing Shaft Mount Lower
  • Coil Over Hardware kit 20135D sold separately
    Reset options
    AFCO Z-Rod Option
    The Z-Rod Option moves the adjustment knob on the Rod End of the shock to the side. It also decreases shock length by .820"
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Valving Options

  • 3870R-1-BG Big Gun  = Extension (Rebound) Valving for Slicks / High HP (BLUE)
  • 3870R-1-BGX Big Gun X = Extra Tight Extension (Rebound) Valving for High HP Drag Radial (BLUE)
  • 3870R-1-BG-BK Big Gun  = Extension (Rebound) Valving for Slicks / High HP (BLACK)
  • 3870R-1-BGX-BK Big Gun X = Extra Tight Extension (Rebound) Valving for High HP Drag Radial (BLACK)

Applications*
*May need to slot tie bar mount

  • ’82-’96 BLAZER, S-10
  • ’68-’87 EL CAMINO
  • ’64-’67 EL CAMINO
  • ’10-’15 CAMARO
  • ’68-’83 CHEVELLE, MALIBU
  • ’64-’67 CHEVELLE, MALIBU
  • ’73 NOVA WITH H.D. REAR
  • ’68-’72 NOVA W / MONOLEAF
  • ’68-’72 NOVA W / MULTILEAF
  • ’73 NOVA WITH H.D. REAR
  • ’68-’72 NOVA W / MONOLEAF
  • ’68-’72 NOVA W / MULTILEAF
  • ’65-’86 FULL-SIZE GM
  • ’55-’57 FULL-SIZE GM
  • ’70-’88 MONTE
  • ’75-’80 MONZA
  • ’72-’77 VEGA
Extension Valving

Big Gun (Slick), Big Gun X (Radial)

Color

Blue, Black

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