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Make sure this part fits

GM ZR2/AT4X Spec Front and Rear DSSV Shock System

GM Part No.: 85640298
Customer Questions & Expert Answers (2)
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 1 of 5
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 1 of 5
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 2 of 5
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 3 of 5
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 4 of 5
85640298 GM ZR2/AT4X Spec Front and Rear DSSV Shock System Product Photo 5 of 5
  • Delivers exceptional performance in a variety of scenarios – from technical rock crawling to tight two-track trails or high-speed desert running to daily driving
  • Features three separate spool valves that increase precision for enhanced ride and handling on- and off-road
  • Includes three connected chambers for fluid flow
  • Installation by an authorized dealer is recommended
  • Multimatic DSSV™ Shocks specifically developed for your truck
  • Provides up to a 2-inch increase in front suspension travel and up to a 1-inch increase in rear suspension travel
  • System includes complete front shock module assemblies, rear shocks, steel leaf springs and installation hardware
  • The ZR2 Spec DSSV Shock System is designed and tuned specifically to deliver exceptional performance in a variety of scenarios - from technical rock crawling to tight two-track trails or hgh-speed desert running to daily driving. These 40mm Multimatic DSSV™ Shocks included in this system employ spool valve technology and offer increased precision for enhanced ride and handling performance both on- and off-road. Additionally, they provide up to a 2-inch increase in front suspension travel and up to a 1-inch increase in rear suspension travel. Enhancements from stock Silverado Trail Boss shocks include an 18mm diameter front rod and a 16mm rear rod to accommodate higher side load, advanced design seals to handle high shock temperatures, three separate spool valves to control damping and three connected chambers for fluid flow. Compatible with 2019+ Silverado Trail Boss models or vehicles equipped with the Performance 2-Inch Suspension Lift Kit (sold separately). Installation by an authorized dealer is recommended. The system includes complete front shock module assemblies, rear shocks, steel leaf springs and installation hardware
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  • Product Specifications
  • Warranty
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • Product Specifications

    End 1 Outside Diameter112 mm
    Installed Height10.25 in
    End 1 TypeStrut Mount
    Maximum Outside Diameter160 mm
    End 2 TypeT Bar
    Width162.94 mm
    Coil Quantity7
    Suspension Grade TypeStandard
    Seat IncludedNo
    Wire Diameter0.75 in
    End 2 Outside Diameter6.14 in
    Maximum Inside Diameter120 mm
    End 2 Outside Diameter156 mm
    Free Height260 mm
    Spring TypeCoil
    MaterialSteel
    Length260.3 mm
    Height260 mm
    ColorBlack
    FinishPainted
    Free Height10.24 in
    Wire Diameter19 mm
    Maximum Inside Diameter4.72 in
    Maximum Outside Diameter6.3 in
    Installed Height260.3 mm
    End 1 Outside Diameter4.41 in
    Warning: California's Proposition 65

  • Warranty

    This genuine GM part is guaranteed by GM's factory warranty.

  • Vehicle Fitment

    Make Model Year Submodel
    ChevroletSilverado20251500 2WD, 1500 4WD
    ChevroletSilverado20241500 2WD, 1500 4WD
    ChevroletSilverado20231500 2WD, 1500 4WD
    GMCSierra20251500 2WD, 1500 4WD
    GMCSierra20241500 2WD, 1500 4WD
    GMCSierra20231500 2WD, 1500 4WD

  • Customer Questions & Expert Answers

    Q:
    Do these parts fit my vehicle? Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 85640298 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    I am looking to upgrade my truck suspension to front and rear DSSV shock system. Posted by Customer: 2020 Light Truck Silverado / Sierra / Cheyenne - 03, 43, 53 Bodystyle (4WD)
    A:
    Hello, Per your vin you require rear shock 85016315 x2 and front shock 85016318 x2
    Posted by GMPartsGiant Specialist 3/9/2025

Genuine GM ZR2/AT4X Spec Front and Rear DSSV Shock System 85640298, the Right Choice

Your vehicle deserves only genuine OEM GM parts and accessories. To ensure reliability, purchase GM part # 85640298 ZR2/AT4X Spec Front and Rear DSSV Shock System. It is sometimes referred to as GM Brake Upgrade Systems. Our GM parts and accessories are expedited directly from authorized GM dealers strategically located all across the U.S. and are backed by the manufacturer's 12 month, 12,000 mile warranty. OEM GM parts are the best for restoring your vehicle to factory condition performance. This part fits specific Chevrolet Silverado models. It fits GMC Sierra.

Affordable, reliable and built to last, GM part # 85640298 ZR2/AT4X Spec Front and Rear DSSV Shock System stands out as the smart option. GMPartsGiant.com is your prime online source with the biggest and best selection of genuine GM parts and accessories at giant discounted prices. We have the OEM GM parts and accessories you need at the wholesale prices. GMPartsGiant.com has you covered no matter what type of GM vehicle you drive.

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