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ACDelco Specialty Premium Monotube Rear Shock Absorber
Gold
Pack of 1

ACDelco Specialty Premium Monotube Rear Shock Absorber

GM Part #88962995

ACDelco Part #540-5018

MSRP$160.16*

ACDelco Specialty Premium Monotube Shocks are designed to meet the demands of sport utility vehicles, 4x4s and light-duty trucks, which require greater control, handling, safety, and performance.

  • Single tube and multi-stage sealing design minimizes chamber temperature and debris entry for longer lasting performance
  • Larger 1-13/16 inch (46mm) bore size allows the shock to react quickly to bumps and other road imperfections
  • Greater heat dissipation, improved cooling, and reduction in fade, compared to conventional twin tube shocks

Pack of 1

About this product

ACDelco Specialty Premium Monotube Shocks are designed to meet the demands of sport utility vehicles, 4x4s and light-duty trucks, which require greater control, handling, safety, and performance. These premium shocks feature consistent damping and rapid response characteristics, large chromed piston rods, high pressure nitrogen gas up to 275 psi, and a single tube design. Additionally, ACDelco Specialty Premium Monotube Shocks utilize floating piston technology that completely separates the oil from the nitrogen gas, producing extremely consistent operational control due to aeration elimination, and superior heat dissipation.

Warning WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Single tube and multi-stage sealing design minimizes chamber temperature and debris entry for longer lasting performance
  • Larger 1-13/16 inch (46mm) bore size allows the shock to react quickly to bumps and other road imperfections
  • Greater heat dissipation, improved cooling, and reduction in fade, compared to conventional twin tube shocks
  • Large internal working area helps reduce stress and fatigue for component durability
  • Monotube technology and rod guide bearing system offer outstanding response for controlled handling
  • 14mm super finished, hardened, chromed piston rod for anti-corrosion support and a consistent wear surface
  • Fit and ride tested to ensure that the shocks will fit intended vehicles and applications

Grade TypePremium
Mounting Hardware IncludedNo
Gas ChargedYes
Compressed Length14.72 in / 413.004 mm
Boot IncludedYes
Weight0.21lb
Body Diameter1.97 in / 50.04 mm
ClassificationGold
Travel Length9.56 in / 242.82 mm
Shock Stroke242.82mm
Shock Absorber Rod End Measuring PointCenter Barpin
Shock Absorber Body End Measuring PointCenter Eye

12 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

To inspect your shocks and struts to gauge wear, check for:

  • Brakes
  • Tie rods
  • Ball joints
  • Tires
  • Leaking oil or wetness along the body of the shock or strut.
  • Broken mounts, worn or missing bushings.
  • Broken, damaged, or missing mounting hardware.
  • Severely dented reservoir tube, bent or scratched piston rod.
  • Cupped tire wear.
  • Damaged strut body springs, seats, and bushings.
  • Defective strut bearing or missing plate.

Uneven patches of wear on the edges of your tire can be a sign of weak ride control (shocks or struts). This wear, called cupping, appears as scalloped dips around the surface of the tread. Other signs it could be time to replace your shocks or struts include:

  • There is excessive nose dive while braking
  • Your vehicle has 'acceleration squat'
  • Your vehicle does not return to a neutral position
  • Your steering pulls
  • There is a strut mount or bearing noise
  • Your ride is harsh, bumpy or shaky
  • Your vehicle bounces excessively
  • Your vehicle veers in side winds
  • Your vehicle leans or sways while turning
  • Your vehicle bounces excessively after hitting a bump
  • Your vehicle bottoms out
  • If your vehicle's height seems lower than normal when measured
  • If you notice fluid leakage from your vehicle's shocks or struts
  • If your vehicle's shocks or struts have dented or heavily scratched housings or mounts

ModelBody StyleTrimYear(s)
K301982, 1983, 1984, 1985, 1986
R3500Cab & Chassis1989, 1990, 1991
R3500Crew Cab Pickup1989, 1990, 1991
Silverado 15001999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
Silverado 1500 Classic2007

Frequently Asked Questions

Yes, though shocks and struts perform a similar function, they vary greatly in their design. Struts are an integral part of a vehicle's suspension system, providing structural support for the vehicle and, as such, are a safety subsystem. Shocks work separately from any structural function, simply absorbing and damping the bumps from the road.

Yes, all shocks and struts use hydraulic fluid (oil) to control damping. A gas charged shock or strut uses high-pressure nitrogen gas to reduce oil foaming during high-speed damping, and therefore maintains performance.

Yes, it is possible to do a quick check at home for wear on your vehicle's shocks or struts. You can look for any physical damage to the shock or strut housing or any leaking - this is especially common on rear units that tend to have stones kicked up by the front wheels. You can also perform a bounce test by taking each corner of the vehicle and pushing down hard. The corner should drop, rise and settle again. If the body continues to move up and down, there's a good chance your shocks need to be replaced. Though these home tests can indicate worn shocks or struts, it is also recommended that you take your vehicle to a qualified service technician and let them do a thorough inspection every 12 months or 12,000 miles.

Yes, if you are replacing your vehicle's struts. However, it is not necessary to get your vehicle aligned when replacing your vehicle's shocks unless there was or is a previous issue.

Yes, it is important to choose the correct shock or strut for your vehicle model and year, as well as for the location in the vehicle.