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Arnott’s completely new (not remanufactured) air strut for the front of the 2004 to 2010 Jaguar XJ series with Comfort Suspension (AS-2888) features a custom-made and tuned premium monotube shock absorber designed to provide a responsive yet comfortable ride.

The Arnott-designed strut eliminates many of the common high wear weaknesses of the OE strut, such as the leaky upper seal, noisy upper mount, and the weak lower rubber seal. The Arnott strut is built with a new Continental ContiTech air bladder, heavy-duty crimping rings, new O-Rings and a new, OE-inspired dampening coil. The strut fits Jaguar vehicles with comfort suspension. Arnott recommends replacing both Jaguar XJ O.E. front struts at the same time.

The new aftermarket Air Strut for the X350 Chassis and the X358 Chassis  replaces OE Part Numbers C2C41349, C2C41339, C2C41347, C2C28533, C2C28409, C2C25696, C2C24412, C2C39763, and C2C31016.

* Custom-Designed Monotube Shock Absorber
* CNC-Machined Aluminum Parts
* Valved To Provide An Excellent Ride
* Anodized Aluminum Finish
* Pre-Assembled For Easy Installation
* Engineered in the USA


Nivomat suspension units have been used for more than 30 years on a variety of domestic and foreign vehicles, including Volvo, Ford, Opel, Saab, GM, Jaguar, Alfa Romeo, Rover, Mercedes, Mitsubishi, Kia and others. The Nivomat self-leveling shock has a lightweight coil spring and gradually, over a mile or two, self-adjusts to normal ride height when heavily loaded. You may even notice with Nivomats that your parked car settles a little bit after a couple days. Read more about them on our website.

If you are wondering if you have Nivomats, check your manual, or try to get a look at them. They will only be in the rear. Nivomats have a thinner end toward the eyelet (although Monroe Nivomats and some others have a built-in accordion boot cover). If you can’t see the entire unit and you don’t want to take the tire off, but you can see the bar code, try scanning the bar code with your smartphone and a cheap or free bar code reader app such as Barcode Express.

If your vehicle has manufacturer-installed Nivomats, these will need to be replaced with Nivomats, because these shocks (unlike most) actually help hold up the car. If you replace them with non-Nivomat technology your rear end will sag. That’s right, your rear end will sag. Nobody wants that.


The Nivomat is on top.


GM trucks and SUVs have Service Parts Identification Label sticker inside the glove box. This label will have your VIN, Wheel Base, Model designation and a list of 3-digit/character RPOs (Regular Production Options). If you see code “Z55” on the label, you have Autoride electronic suspension. Thanks to our friends at Arnott Industries for sharing this.



Almost every week someone asks us about the “upside-down” mounting of Bilstein shocks on Ford vehicles. And yes, it’s true, they mount boot-side-down. Bilstein engineers added small holes to drain condensation from the boot side; in most cases they will only mount one way anyway, but if it looks weird to you, you are not alone. You’ll notice that mounting them this way leaves the Bilstein logo right-side up! Bilstein’s tech people recommend that the logo should always appear right-side-up when you have finished installation, so that helps a lot.

The Bilstein SDs for Ford are some of our top sellers–we sell a few thousand of them every year.

Proper location with Bilstein logo right-side-up

Proper location with Bilstein logo right-side-up


When You Unpack Your Shocks

Sometimes, one shock may be more extended than the other. This is normal. See our August 18 blog post Koni STR.T is Fine for more information.

The strap, if included, is purely for shipping purposes and has no function during shock installation.

Some new shocks may show a small amount of oil in the seal area. This is a normal occurrence following manufacturing and does not indicate a leak or problem with your new shocks.


In the first place, a lot depends on what you want. Shock absorbers or struts can cost anywhere from $40-$400 EACH, depending on the make and model of your vehicle and what you are looking for in terms of performance. If you need this question answered because you are facing your first replacement on a current vehicle, you can use the Make-Model-Year calculator at Shockwarehouse to determine what products are available for your vehicle.

The good news is that in many cases, if you are just looking to replace original manufacturer equipment and maintain the ride your car came with, you will be spending on the lower end of that spectrum, probably around $250 or less for equipment to replace all four shocks/struts. Then figure on labor costs by a professional mechanic to run between $80-$120 per hour depending on your area.

Bear in mind, if you are driving a luxury vehicle, a vehicle that has a difficult access to struts, or even a lot of rust which can add to the time it takes to remove the old equipment.

You may also need a wheel alignment after the replacement, usually between $70 and $200, again depending on your vehicle.


A 2001 Ford Taurus SES sedan owner wrote to us:

“I would like your opinion on the quality vs. ride performance between the Monroe and KYB struts your company sells. Which is the best strut for my Taurus? I don’t want to order a wimpy replacement, but I would like to restore the ‘Factory’ ride.”

Here’s our mechanic’s answer:

“Both the KYB and Monroe are the same as the OE units, a twin tube low pressure design. The Monroes have a groove inside that allows extra oil bypass; the KYB has no such gimmick, and will be a straight normal twin tube (like a Ford OE unit). While neither is a ‘performance’ unit, the KYB might be slightly better from a technical stand point.”

Enter your make, model and year to search for what we have available in our online catalog.


More about “ride” on our website:



Be sure to visit our home page and sign up for our monthly promotions newsletter in the box on the left side rail. We will have specials throughout the holidays.

Happy Holidays from Shockwarehouse!




Shockwarehouse carries a wide variety of shocks for motorhome applications. The motorhome/RV suspension market is different from the suspension market for cars and trucks. In most cases your motorhome’s body will come from one manufacturer, the chassis it rides on from another, and the engine that runs it from a third. Your owner’s manual may not even tell you who made what. Instead of your chassis being made by an RV manufacturer like Winnebago, Fleetwood or Four Winds, RV chassis are actually made by companies like Ford, Dodge and GM. Ford has really dominated the Class A motorhome chassis market with the F-53 chassis, though Workhouse re-entered the market in 2015 and has gained some traction. Here at Shockwarehouse the Bilstein Steering Stabilizer and Bilstein Heavy Duty shocks for the F-53 are among our best sellers.

Peter Scalf’s article for RV View magazine was written in 1999 but has some good information about motorhome suspensions.

To get started you need to know your chassis type to make the right decision about what shocks to buy. The chassis is identified by the VIN number on the chassis. If you can’t find it, call Shockwarehouse at 1-800-245-7469 and our specialists will help you find it.


Shockwarehouse has developed a handy Shock Guide to help you make a decision when you need to buy shocks or struts. Driving conditions, age of your car, tires, tire pressure, performance needs and many other variables will affect your decision. In our opinion, monotube high pressure gas units offer the best dampening power, performance, and handling, but your particular driving profile may not demand that level of performance. For average driving, a twin tube low pressure unit is a good choice.

We carry a wide variety of shocks and struts for all applications. If you need more guidance, call Shockwarehouse at 1-800-245-7469 and our specialists will help you.



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When you pull your tires, be sure to check your brake pads as well.
Go to www.BrakePadWarehouse.com for all your needs.