ACDelco 504-547 | Rear Shock Absorber

ACDelco

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$118.79

Part Number

ACD504-547

UPC:

00021625320854

Condition:

New

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Description
Attributes
Warranty Information
Shipping & Returns
custom prodcut tab
FAQ

Description

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.

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*
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:

ACD_RemanDes	No
AltPA_107_mm	374.396
AltPA_3042_mm	621.538
AltPA_38_mm	247.14
Comparison Chart 1	PL05_PL09_CC_MaintShockStrut.jpg
Comparison Chart 2	PL09_CC_ChromedRodVsUncoatedRod.jpg
FAQ - A1	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.
FAQ - A2	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 - A3	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.
FAQ - A4	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.
FAQ - A5	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 - Q1	Is there a difference between a shock and a strut?
FAQ - Q2	Do gas charged shocks or struts contain oil?
FAQ - Q3	Can I check my vehicle's shocks for wear?
FAQ - Q4	Should I have my vehicle aligned after replacing my shocks or struts?
FAQ - Q5	Do I need different shocks for front, rear, left, or right applications?
Good Maintenance Practices - S1 B1	Brakes
Good Maintenance Practices - S1 B2	Tie rods
Good Maintenance Practices - S1 B3	Ball joints
Good Maintenance Practices - S1 B4	Tires
Good Maintenance Practices - S1 H	Your 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 - S2 B1	Leaking oil or wetness along the body of the shock or strut.
Good Maintenance Practices - S2 B2	Broken mounts, worn or missing bushings.
Good Maintenance Practices - S2 B3	Broken, damaged, or missing mounting hardware.
Good Maintenance Practices - S2 B4	Severely dented reservoir tube, bent or scratched piston rod.
Good Maintenance Practices - S2 B5	Cupped tire wear.
Good Maintenance Practices - S2 B6	Damaged strut body springs, seats, and bushings.
Good Maintenance Practices - S2 B7	Defective strut bearing or missing plate.
Good Maintenance Practices - S2 H	To inspect your shocks and struts to gauge wear, check for:
Marketing Statement - Product Line	ACDelco provides superior comfort, control, and durability through our Professional, Advantage, and Specialty Suspension lines. We offer a wide variety of parts, such as, suspension components, steering dampers, and lift supports. Preserving your vehicle's safety and driving comfort means also maintaining your vehicle's suspension. ACDelco Suspension Components, like shocks and struts, provide outstanding ride, comfort, and handling for your passenger car, light truck, or SUV. Keep your steering smooth and vibration-free with ACDelco Steering Dampers and use ACDelco Lift Supports to retain your vehicle's accessibility and convenience. To maintain vehicle safety and comfort, as well as convenience and performance, look no further than ACDelco Suspension Components.
Marketing Statement - Sub Brand	When it comes to replacing your shocks and struts, ACDelco offers Specialty Shocks. Able to fit many GM sport utility and performance vehicles on the road today, ACDelco Specialty Shocks are built to handle demanding applications like towing and temporary loads. Get great ride and handling for your sport utility or performance vehicle with ACDelco Specialty Shocks.
Mkt_BrandQual_Name	Air Lift
Mkt_State_Warranty_CA	Limited Lifetime Warranty as long as original purchaser still owns vehicle (Parts Only).
Mkt_State_Warranty_US	24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com for more details.
Signs of Wear & Troubleshooting - S1 B1	There is directional and steering wheel position instability
Signs of Wear & Troubleshooting - S1 B2	Your brakes pull
Signs of Wear & Troubleshooting - S1 B3	You notice worn or loose suspension or steering components
Signs of Wear & Troubleshooting - S1 B4	There is excessive nose dive while braking
Signs of Wear & Troubleshooting - S1 B5	Your vehicle has 'acceleration squat'
Signs of Wear & Troubleshooting - S1 B6	Your vehicle does not return to a neutral position
Signs of Wear & Troubleshooting - S1 B7	Your steering pulls
Signs of Wear & Troubleshooting - S1 B8	There is a strut mount or bearing noise
Signs of Wear & Troubleshooting - S1 H	It could be time to replace your shocks or struts if, when driving on a flat smooth surface:
Signs of Wear & Troubleshooting - S2 B1	Your ride is harsh, bumpy or shaky
Signs of Wear & Troubleshooting - S2 B2	Your vehicle bounces excessively
Signs of Wear & Troubleshooting - S2 B3	Your vehicle veers in side winds
Signs of Wear & Troubleshooting - S2 B4	Your vehicle leans or sways while turning
Signs of Wear & Troubleshooting - S2 B5	Your vehicle bounces excessively after hitting a bump
Signs of Wear & Troubleshooting - S2 B6	Your vehicle bottoms out
Signs of Wear & Troubleshooting - S2 H	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 - S3 B1	If your vehicle's height seems lower than normal when measured
Signs of Wear & Troubleshooting - S3 B2	If you notice fluid leakage from your vehicle's shocks or struts
Signs of Wear & Troubleshooting - S3 B3	If your vehicle's shocks or struts have dented or heavily scratched housings or mounts
Signs of Wear & Troubleshooting - S3 H	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:
Vintage_Part_Indicator	N

DOWNLOADS:

APPLICATIONS:

2006-2011 Cadillac DTS - Position: Rear
1997-2005 Buick Park Avenue - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

2000-2005 Cadillac DeVille - Position: Rear

Exc. Electronic Adjustable Suspension Must be used with provided air kit

1995-1997 Buick Riviera - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

1998-2004 Cadillac Seville - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

2000-2005 Buick LeSabre - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

1998-1999 Buick Riviera - Position: Rear

Must be used with provided air kit

2000-2005 Pontiac Bonneville - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

1995-1999 Oldsmobile Aurora - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

2006-2011 Buick Lucerne - Position: Rear

Exc. Magnetic Ride Control Suspension

2001-2003 Oldsmobile Aurora - Position: Rear

All w/o OE Style air fitting Must be used with provided air kit

Warranty Information

1-year Replacement unlimited-mileage warranty

Shipping & Returns

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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Attributes

Part Type:

Aftermarket

Brand Description:

Rear Shock Absorber

Product Description:

Rear Air Lift Shock Absorber

Mounting Hardware Included:

Yes

Programming Required:

Adjustable:

Yes

Shock Absorber Rod End Measuring Point:

Stud Mounting

Lower Mount Type:

Stud

Upper Mount Type:

Stud

Coil Over Springs Included:

Compressed Length (Inch):

14.74

Gas Charged:

Boot Included:

Dust Shield:

Yes

Shock Absorber Body End Measuring Point:

Ring Center

Shock Stroke (Inch):

9.73

Hazardous Material:

Minimum Order Quantity:

Features &amp; Benefits - Bullet 2:

Adjustable air pressure to custom tune each individual load weight

Features &amp; Benefits - Bullet 4:

Real-world tested to ensure that the shocks will fit intended vehicles and applications

Features &amp; 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 &amp; 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

Weight (lb) (Pound):

12.17

Life Cycle Status Description:

Announced - Part has been announced to customers on a paper “New Number Announcement”. Part is active.

Height (in) (Inch):

Item Level GTIN:

00021625320854

Width (in) (Inch):

6.4

Length (in) (Inch):

18.8

Signs of Wear &amp; Troubleshooting - Section 1 - Bull:

Your vehicle has 'acceleration squat'

Signs of Wear &amp; Troubleshooting - Section 1 - Bull:

There is excessive nose dive while braking

Signs of Wear &amp; Troubleshooting - Section 1 - Bull:

There is a strut mount or bearing noise

Signs of Wear &amp; Troubleshooting - Section 1 - Bull:

Your steering pulls

Signs of Wear &amp; 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 &amp; 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.