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ACDelco 504-557 | Chevrolet Corvette Rear Shock Absorber

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$96.29
Part Number
ACD504-557
UPC:
21625320328
Condition:
New
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ACDelco Specialty Air Lift Shocks are designed to help provide better handling for temporary situations, such as when a vehicle hauls a heavy load or tows a trailer. They have an adjustable air pressure, between 25 and 200 psi, and up to 1,100 lbs (per pair) of load-carrying capacity*. Under loaded conditions, these shocks help maintain level vehicle height by adding or releasing air as needed, assisting in the stabilization of alignment angles, reducing other suspension component wear, improving handling, and reducing the risk of bottoming out. ACDelco Specialty Air Lift Shocks are ideal for temporary load hauling, including towing boats and trailers. *Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

BRAND: ACDelco

FEATURES:

  • Adjustable air pressure to custom tune each individual load weight
  • Can maintain ride height with up to 1,100 lbs (per pair) of additional temporary leveling capacity to help improve vehicle handling and reduce the risk of undercarriage damage*
  • Chevrolet
  • Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload.
  • Real-world tested to ensure that the shocks will fit intended vehicles and applications
  • The super finished chromed piston rod provides anti-corrosion support, a more consistent wear surface, proper seal lubrication, and longer product life

SPECIFICS:

AdjustableYes
Boot IncludedNo
Coil Over Springs IncludedNo
Dust ShieldYes
FAQ - Answer 1Yes, 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.
FAQ - Answer 2Yes, 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.
FAQ - Answer 3Yes, 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.
FAQ - Answer 4Yes, 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.
FAQ - Answer 5Yes, 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.
FAQ - Question 1Is there a difference between a shock and a strut?
FAQ - Question 2Do gas charged shocks or struts contain oil?
FAQ - Question 3Can I check my vehicle's shocks for wear?
FAQ - Question 4Should I have my vehicle aligned after replacing my shocks or struts?
FAQ - Question 5Do I need different shocks for front, rear, left, or right applications?
Fully Open Length (in)14.35 in
Fully Open Length (mm)364.49 mm
Gas ChargedNo
Good Maintenance Practices - Section 1 - Bullet 1Brakes
Good Maintenance Practices - Section 1 - Bullet 2Tie rods
Good Maintenance Practices - Section 1 - Bullet 3Ball joints
Good Maintenance Practices - Section 1 - Bullet 4Tires
Good Maintenance Practices - Section 1 - HeaderYour vehicle's shocks and struts slowly deteriorate over time, though this wear is normally difficult to detect. To maximize your vehicle's ride comfort and safety, it is recommended to replace your vehicle's shocks and struts every 50,000 miles. Worn shocks and struts can also cause additional wear to other vehicle components. Affected components include:
Good Maintenance Practices - Section 2 - Bullet 1Leaking oil or wetness along the body of the shock or strut.
Good Maintenance Practices - Section 2 - Bullet 2Broken mounts, worn or missing bushings.
Good Maintenance Practices - Section 2 - Bullet 3Broken, damaged, or missing mounting hardware.
Good Maintenance Practices - Section 2 - Bullet 4Severely dented reservoir tube, bent or scratched piston rod.
Good Maintenance Practices - Section 2 - Bullet 5Cupped tire wear.
Good Maintenance Practices - Section 2 - Bullet 6Damaged strut body springs, seats, and bushings.
Good Maintenance Practices - Section 2 - Bullet 7Defective strut bearing or missing plate.
Good Maintenance Practices - Section 2 - HeaderTo inspect your shocks and struts to gauge wear, check for:
Lower Mount TypeEyelet
Mounting Hardware IncludedYes
Programming RequiredNo
Shock Absorber Body End Measuring PointRing Center
Shock Absorber Rod End Measuring PointRing Center
Signs of Wear & Troubleshooting - Section 1 - Bullet 1There is excessive nose dive while braking
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Your vehicle has 'acceleration squat'
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Your vehicle does not return to a neutral position
Signs of Wear & Troubleshooting - Section 1 - Bullet 4Your steering pulls
Signs of Wear & Troubleshooting - Section 1 - Bullet 5There is a strut mount or bearing noise
Signs of Wear & Troubleshooting - Section 2 - Bullet 1Your ride is harsh, bumpy or shaky
Signs of Wear & Troubleshooting - Section 2 - Bullet 2Your vehicle bounces excessively
Signs of Wear & Troubleshooting - Section 2 - Bullet 3Your vehicle veers in side winds
Signs of Wear & Troubleshooting - Section 2 - Bullet 4Your vehicle leans or sways while turning
Signs of Wear & Troubleshooting - Section 2 - Bullet 5Your vehicle bounces excessively after hitting a bump
Signs of Wear & Troubleshooting - Section 2 - Bullet 6Your vehicle bottoms out
Signs of Wear & Troubleshooting - Section 2 - HeaderIt could be time to replace your shocks or struts if, when driving on a surface with bumps and/or dips:
Signs of Wear & Troubleshooting - Section 3 - Bullet 1If your vehicle's height seems lower than normal when measured
Signs of Wear & Troubleshooting - Section 3 - Bullet 2If you notice fluid leakage from your vehicle's shocks or struts
Signs of Wear & Troubleshooting - Section 3 - Bullet 3If your vehicle's shocks or struts have dented or heavily scratched housings or mounts
Signs of Wear & Troubleshooting - Section 3 - HeaderUneven 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:
Upper Mount TypeEyelet

APPLICATIONS:

  • 1963-1982 Chevrolet Corvette - Position: Rear

Product type:
Aftermarket
Product Description:
Rear Air Lift Shock Absorber
Mounting Hardware Included:
Yes
Programming Required:
No
Adjustable:
Yes
Shock Absorber Rod End Measuring Point:
Ring Center
Lower Mount Type:
Eyelet
Upper Mount Type:
Eyelet
Coil Over Springs Included:
No
Compressed Length (Inch):
9.75
Gas Charged:
No
Boot Included:
No
Dust Shield:
Yes
Shock Absorber Body End Measuring Point:
Ring Center
Shock Stroke (Inch):
4.6
Hazardous Material:
No
Minimum Order Quantity:
1
Features & Benefits - Bullet 2:
Adjustable air pressure to custom tune each individual load weight
Features & Benefits - Bullet 4:
Real-world tested to ensure that the shocks will fit intended vehicles and applications
Features & Benefits - Bullet 3:
The super finished chromed piston rod provides anti-corrosion support, a more consistent wear surface, proper seal lubrication, and longer product life
Features & Benefits - Bullet 1:
Can maintain ride height with up to 1,100 lbs (per pair) of additional temporary leveling capacity to help improve vehicle handling and reduce the risk of undercarriage damage*
Life Cycle Status:
Announced
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your vehicle has 'acceleration squat'
Life Cycle Status Description:
Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.
Signs of Wear & Troubleshooting - Section 1 - Bull:
There is excessive nose dive while braking
Item Level GTIN:
00021625320328
Signs of Wear & Troubleshooting - Section 1 - Bull:
There is a strut mount or bearing noise
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your steering pulls
Signs of Wear & Troubleshooting - Section 1 - Bull:
Your vehicle does not return to a neutral position
FAQ - Question 4:
Should I have my vehicle aligned after replacing my shocks or struts?
FAQ - Answer 2:
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.
FAQ - Question 3:
Can I check my vehicle's shocks for wear?
FAQ - Question 1:
Is there a difference between a shock and a strut?
FAQ - Answer 5:
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.
FAQ - Question 2:
Do gas charged shocks or struts contain oil?
Features & Benefits - Bullet 5:
Not to exceed vehicle GVWR (Gross Vehicle Weight Rating). Product does not increase payload.
FAQ - Question 5:
Do I need different shocks for front, rear, left, or right applications?
FAQ - Answer 4:
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.
Good Maintenance Practices - Section 1 - Bullet 1:
Brakes
Good Maintenance Practices - Section 1 - Bullet 2:
Tie rods
Good Maintenance Practices - Section 1 - Bullet 3:
Ball joints
Good Maintenance Practices - Section 1 - Bullet 4:
Tires
Good Maintenance Practices - Section 2 - Bullet 1:
Leaking oil or wetness along the body of the shock or strut.
Good Maintenance Practices - Section 2 - Bullet 2:
Broken mounts, worn or missing bushings.
Good Maintenance Practices - Section 2 - Bullet 3:
Broken, damaged, or missing mounting hardware.
Good Maintenance Practices - Section 2 - Bullet 4:
Severely dented reservoir tube, bent or scratched piston rod.
Good Maintenance Practices - Section 2 - Bullet 5:
Cupped tire wear.
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle veers in side winds
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle leans or sways while turning
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bounces excessively after hitting a bump
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bounces excessively
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your vehicle bottoms out
Signs of Wear & Troubleshooting - Section 2 - Bull:
Your ride is harsh, bumpy or shaky
Signs of Wear & Troubleshooting - Section 2 - Head:
It could be time to replace your shocks or struts if, when driving on a surface with bumps and/or dips:
Signs of Wear & Troubleshooting - Section 3 - Bull:
If your vehicle's shocks or struts have dented or heavily scratched housings or mounts
Signs of Wear & Troubleshooting - Section 3 - Bull:
If your vehicle's height seems lower than normal when measured
Signs of Wear & Troubleshooting - Section 3 - Bull:
If you notice fluid leakage from your vehicle's shocks or struts
Good Maintenance Practices - Section 2 - Header:
To inspect your shocks and struts to gauge wear, check for:
Good Maintenance Practices - Section 2 - Bullet 7:
Defective strut bearing or missing plate.
Good Maintenance Practices - Section 2 - Bullet 6:
Damaged strut body springs, seats, and bushings.
Compressed Length (Millimeter):
247.65
Fully Open Length (in):
14.35 in
Shock Stroke (Millimeter):
116.84
Fully Open Length (mm):
364.49 mm
Country of Origin:
Mexico
Weight - Each (Gross Pounds):
07.67
Height - Each (Inch):
04.00
Length - Each (Inch):
18.80
Width - Each (Inch):
06.40



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