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How to Identify and Measure Universal Lift Supports

How to Identify and Measure Universal Lift Supports

Universal lift supports are used on a wide variety of applications, such as:

  • Truck Caps, Toppers and Camper Shells
  • Tonneau Covers
  • Campers and RV's
  • Trailers
  • Tool Boxes
  • Marine
  • Other universal applications

Please note that universal lift supports are not used for automotive applications, such as hoods, trunks and hatches.  To identify the correct automotive lift support, please see our automotive lift supports product category.

Measuring the Lift Supports

If you are not able to find an exact match, just follow this easy step by step process:

  1. Measure the Extended Length:
    Measure your old lift support from the middle of each rod connection point (ball socket or eyelet), not from the absolute ends.
    lift supprt length

  2. Measure the Rod Length:
    Measure the Rod Length from the middle of the rod end connection point to where the rod meets the tube.
    lift support rod length

  3. Calculate Compressed Length:
    Compressed Length is determined by subtracting Rod Length (Step 2) from Extended Length (Step 1).

  4. Identify Connection Type On Each End:
    The end fittings may be a Ball Sockets or an Eyelet style on either the Rod End or Tube End.

         Ball Socket
    ball socket end fitting

    eyelet end fitting

  5. Identify the Force (Pressure) In Pounds:
    Look on the tube end for the rate in force, this may be in lbs. or Newtons.
    If you see a number followed by an “N” this is Newtons, divide the figure by 4.45 to convert to pounds.

The below video further demonstrates how to measure and identify the correct universal lift support for your application. 


If you still need help on finding or replacing your lift supports, just Contact Us and our knowledgeable and friendly staff will assist you.

Lift supports are also known as props, gas props, struts, gas struts or just supports.  Regardless of what you call it, you will be sure to find the right part at the right price for your replacement. 

How to Replace your Vehicle’s Lift Supports

How to Replace your Vehicle’s Lift Supports

When you lift supports fails, common tasks such as loading your trunk or checking under the hood can become a hassle or even a sately concern.  Fortunately, find and replacing your lift supports from can be quick and easy.

Replacing Your Lift Supports

When it comes to replacing a failed or worn out lift supports for your vehicle, there are various topics to consider, such as:

  • How to determine if your lift support is beginning to fail
  • How to find a correct replacement lift support
  • Safety and other considerations when replacing your lift supports
  • Instructions and suggestions when replacing your lift supports

The video below demonstrates these topics and help serve as a guide when replacing your lift supports.


If you still need help on finding or replacing your lift supports, just Contact Us and our knowledgeable and friendly staff will assist you.

Lift supports are also known as props, gas props, struts, gas struts or just supports.  Regardless of what you call it, you will be sure to find the right part at the right price for your replacement.    

Finding the Correct Truck Cap Replacement Parts

Finding the Correct Truck Cap Replacement Parts

Looking to replace or add some parts for your truck cap? Regardless of what you call it, truck cap, topper, or camper shell, finding the correct part can be a challenge. If you are not exactly sure, then you are at the right place. Finding the best parts that fit well can at times prove to be challenging considering the many brands, part numbers and specifications. In addition, the numerous dealers can sometimes leave you with too many choices to find the perfect parts. So, how should you go about choosing the right truck cap parts for you?

Choosing the Right Truck Cap Parts

As much as it may prove challenging to find the correct part, you can still find the best replacement part if only you try to gather as much information as possible about the brand and the specifications about the part you need to add or replace on your truck cap. Below are some factors to consider before making a purchase for the right part for your truck topper.

  • Identify the correct brand and part number - Regardless of the part that you need, such as handle, lightlift support gas prop or clamps, the most reliable way to ensure the part fits is to match the brand and part number. For example, if you need to replace a gas prop, the brand and part number will be written on the shaft, such as Suspa C16-06389. For locks, the brand may be stamped on the key and for lights it may be necessary to remove the plastic lens cover to identify the brand and part number. Spending a little extra time to identify all or part of this information can save you allot of time in the long run and avoid needless returns and exchanges. A common question we often get is “I can’t find the brand and part number of the part I need”. Sometimes to part number is just not there, is not legible or the part is self is just not there. Each truck topper or camper shell should have a serial number. If you look carefully you should be able to find a plate inside the truck cap with the serial number on it. If you call a local dealer for your topper brand, such are A.R.E., Leer, Jericho and others, with the serial number they should be able to identify the brand and part number you need.

  • Getting the correct specifications - Sometimes a part number is just not available or you may be adding a new part rather than a replacement. In this case it may require doing some measurements and comparing options that may be available. Locks come in all sorts of shapes and sizes, have different shaft length, base length and handle length. You also need to know how far apart the screw holes are to ensure the new lock aligns correctly with the place where it needs to be mounted. Lights (both dome and third brake light) have different lens length, base length and wire length. The wiring specifications also need to be considered, especially considering other electrical components that get wired to it. Gas prop lift supports have both compressed length and extended length specifications.  All of these measurements re important to make sure the part fits correctly on your truck topper. Gas props also have pressure measured in pounds (typical for Suspa) or Newtons (typical for Stabilus Lift-o-mat) represented by an “N”. Pressure is important because if there is not enough pressure, the lid or door will not be supported and if there is too much pressure, you will not be able to close it.

  • Quality of the truck cap part - It is import to get genuine brand name replacement and add-on part. We strive to offer the best quality parts available and often the original equipment manufacturer (OEM) if possible. Be careful of the many imported “imitation” parts that look and feel the same but have significant quality issues. Saving a couple dollars and installing an inferior product will cost much more in the long run both in time and money. The quality plays a key role in determining whether or not you will get value for your money.

  • Price - We understand that pricing is a key factor when shopping for a product online. We strive to offer the most competitive price for the product available and with a wide variety of products to fit your budget. You can rest assured that you are getting a quality product, professional service and a no hassle return policy. We want you to buy with confidence, so if the part does not fit your truck cap, topper or camper shell, or is simply no longer needed just return it for a refund.

  • Dealer - You want to ensure that you get genuine truck cap parts and accessories and avoid the knock-offs or imitations often found online. That will often depend on the where you decide to make your purchase. While the image online may look the same you want to ensure that what you ordered meets your needs and expectations. Be sure to order from a store that sells high quality and genuine parts. This will go a long way in ensuring you find parts that will serve you for a long time.

  • Brand comparison - Before deciding on a t-handle lock, lightlift support gas props or any other part for your camper shell or topper, ensure you gather information about the different brands. While some brands are interchangeable others are not. Some brands offer multiple models with the same fitment but differ in usability, such as heavy duty or not. Understanding this information will help as a guideline to help you find the perfect topper part.

The first and most import step when buying a new part for your topper or truck cap is to ensure that the part fits. Getting the brand, part number and specifications for your part will go a long way to ensure a proper fitment. Next you need to make sure that you are getting a quality product to avoid the cost and disappointment of installing inferior topper parts. Finally make sure that you buy from a reputable, established store to ensure you have a smooth and easy transaction and a no hassle return policy. This information should help in making your search and buying experience for replacement parts easier and better. If you have feedback or suggestions on how we can serve you better, please let us know.

What wire harness kit do I need for my vehicle?

Wire harnesses allow the truck cap to be removed without the need to cut any wires. When wiring a 3rd brake or a dome light to a truck, it is important to pick the correct wire harness for your vehicle.

Below is a model chart for wire harness requirements.  This can serve as a guide when selecting the correct wire harness as part of your 3rd brake light installation.  All of our wire harness kits can be browsed in the electrical category.

Vehicle Model Year Harness Kit
Chevy 1994 - current A
1993-Prior D
Dodge 1998 - current A
1997 E
1994-1996 C
1993-Prior D
Ford - Full Size 1996 - current A
1994-1995 B
1993-Prior D
Ford - Ranger 1998-1999 A
1997-1999 B1
2000-2002 B1
1992-Prior D
Jeep Comanche 1994 - Prior D
Isuzu All Years A
Mazda All Years A
Mitsubishi All Years A
Nissan All Years A
Toyota All Years A
What Type of Tonneau Cover Should I Buy?

Any truck, new or used, is a large investment. As a result, many truck owners want to protect their investment and minimize additional expenses. This protection can often include insurance policies, frequent cleanings, and regular maintenance visits. However, in addition to these standard types of care available for your truck, you can also take your protection to the next level if you have a truck or pickup with a bed. The answer is tonneau covers for trucks.

A tonneau cover is a protective layer that you apply across the top of your truck bed in order to add versatility and protection. Truck owners can find vinyl tonneau covers, as well as covers made from a variety of other materials —including canvas, ABS/plastic, metal, fiberglass and more. You can also choose from endless amounts of colors and multiple methods for applying and retracting the covers.

If your vehicle has a bed, chances are there’s a tonneau cover made for it. At SiraWeb, we offer a variety of affordable tonneau covers for popular vehicles such as the Dodge Ram, Toyota Tundra and Ford F-150. We even offers tonneau covers for UTVs and Subaru Bajas as well as other vehicles. Once you determine that you want to protect your truck with a protective cover, the next step is learning about the benefits and figuring out which tonneau cover is best for your truck.

The Benefits of Truck Tonneau Covers

Every tonneau cover offers unique benefits for your truck, the most important being protection. In general, tonneau covers for pickups will provide:

  • Security and privacy — Above all else, a tonneau cover gives vehicle owners an improved sense of security for any items they place in the bed of their vehicle. Whether it’s a hard or soft-top tonneau cover, you’ll have added peace of mind because passerby won’t be able to see what you’re storing in the bed of your truck. Hard-top tonneau covers often come equipped with locks, so you can turn the bed of your vehicle into a safe storage area that nobody but you can access. In essence, a tonneau cover is a purchase that will allow you to turn your vehicle into a mobile work station — some of the best folding tonneau covers give you the ability to safely store expensive tools and equipment without a second thought.

  • Weather resistance — A tonneau cover not only protects the items in your bed from theft, but it can also protect your truck from the elements. Protection from the weather is particularly important if you haul electrical equipment or metal tools that are prone to rusting. Almost all tonneau covers are constructed from materials that are waterproof, which ensures that the items you store in the bed of your truck will be weather-resistant and make it to your destination safely.

  • Gas mileage improvements — An affordable tonneau cover is a quick way to improve the gas mileage of your vehicle, which could end up reducing some of your yearly expenses. By applying a tonneau cover to your vehicle, you’ll eliminate the drag created by your vehicle’s bed. This makes your truck more aerodynamic.

  • Added style — Regardless of whether you choose a vinyl tonneau cover, hard-folding tonneau cover, or a hard plastic tonneau cover, your vehicle will experience one of the most cost-effective facelifts. A tonneau cover presents a more finished look and makes your bed look organized, even if it’s filled with equipment. A tonneau cover can help improve the aesthetics of your truck for a more affordable price than a lot of other modifications.

What Is the Best Tonneau Cover?

Once you know you want a tonneau cover, it’s important to analyze how you’ll use it. For example, are you looking for a tonneau cover that will offer high quality security for the items you put in your truck’s bed? Do you want a tonneau cover that will easily come on and off your truck? Is installation a concern for you? It’s also important to take budget into consideration, as various tonneau covers carry different price tags.

The following is a list of tonneau cover types, their pros and cons, and what you can expect to pay for each. This will help you determine the best prices for tonneau covers and which type is ideal for your truck:

Soft-top Tonneau Covers

soft tonneau cover types

Soft-top tonneau covers are made of vinyl or canvas. They don’t offer the same level of protection as hard-top covers, but they make up for it in convenience. Soft-top tonneau covers are extremely easy to install — in many cases, you’ll simply need to clamp the tonneau cover to the side rails of your pickup. Soft-top tonneau covers also tend to come in one of two styles: roll-top and trifold.

  • Trifold — Trifold soft-top tonneau covers fold away in three sections. They’ll give you easy and quick access to specific sections of your bed without having to remove the entire tonneau cover. If you don’t constantly need access to the entirety of your bed, this is a convenient cover for you to purchase.

    The TonnoPro Tri-Fold tonneau cover includes a useful instructional video, so you can see exactly how these covers install and operate. As versatile as these covers are, they can sometimes make it more difficult to access the full bed of your truck due to their partitioned style. If you’re frequently hauling larger equipment, it might be best to avoid this type of cover.

  • Roll-up — The roll-up tonneau cover offers an even simpler design than the trifold cover. The installation is often similar, but the primary difference between these two types of soft covers is that the roll-up cover is not partitioned. It can easily be rolled all the way back to the cab of your truck. This gives you full access to the bed at a moment’s notice. Roll-up tonneau covers also have a very low profile with little to no additional height above the siderails of your truck.

    As a result, this type of tonneau cover is better suited for truck owners who intend to frequently haul large items in the bed of their trucks. It’s also ideal if you need to regularly access the entirety of your bed, similar to the Tonno Pro tonneau covers offered at SiraWeb.

Hard-Top Tonneau Covers

The second category of tonneau covers is the hard-top options. The biggest benefit to the hard-top tonneau covers is added security. It becomes more difficult for anyone to get into the bed of your truck when you have a hard-top tonneau cover installed. If you’re concerned about security and are willing to pay a higher price tag, these may be the best tonneau covers for you. Hard-top tonneau covers come in:

  • Trifold — The trifold cover is essentially identical to its soft-top counterpart. The primary difference is that the folds will not be as compact — the plastic doesn’t allow the top to be as thin.

  • Retractable — A retractable hard-top tonneau cover is similar to roll-up covers. The primary difference is that the hard cover won’t roll up to the cab. Instead, it’ll retract into a canister. These systems are among the most expensive but efficient that you can purchase for your vehicle. They offer a large amount of security and the ability to easily allow full access to the bed of your truck. If you can’t compromise security and convenience, a retractable tonneau cover is an option to consider.

  • Solid plastic lid — The solid plastic lid is exactly what the name implies. It’s a tonneau cover made from a solid piece of plastic that will sit on the bed of your truck. They aren’t as seamless as their soft-top counterparts or as elegant as the fold and retractable systems, but they’re some of the most durable and secure covers available.

    Most of these solid plastic lids will include a hydraulic lift that will assist you with opening the lid that weighs above 60 pounds. Installation and removal of these tonneau covers can be a bit more difficult and will require assistance. Remember that, because these types of covers only open at an angle, you’ll never have full access to your bed if you have one installed.

    You can also install a lid that’s constructed of painted fiberglass in a color that matches your vehicle. However, if your vehicle has been exposed to the sun for a few years, the fiberglass may not match the color of your truck.

If you’re not overwhelmingly concerned about security, it may be best to stick with soft-top tonneau covers. They’re easy to install, lightweight, offer mild security and privacy, protect your truck from the elements, improve gas mileage, and are cheaper than their hard-top counterparts. You can also browse our selection of tonneau covers to see what options are available for your vehicle, as well as read in-depth specifications about materials and installation instructions.

Additional Considerations for Truck Tonneau Covers

When you know what type of tonneau cover you want, make sure the company you work with stands behind their products. Any tonneau cover you purchase should have a warranty protecting the cover and its components from defects and manufacturing.

For example, Tonno Pro’s warranty is one of the best. It offers a 10-year warranty against any defects of material and workmanship in their products. These types of warranties are a great way to ensure your investment is protected. At SiraWeb, we stand behind our products and offer a price-match guarantee for your peace of mind.

Maintaining Your Tonneau Cover

tonneau cover care

Once you purchase your tonneau cover, the maintenance process is simple — but important. Washing your cover with soap and water will generally keep it clean. If you have a vinyl tonneau cover, you may want to consider purchasing vinyl cleaner to maintain your vinyl so it doesn’t wear earlier than it should.

If you purchase a soft cover, on the other hand, the only real maintenance you might have to perform is tightening the cover after approximately a year of usage. Because tonneau covers are under such high pressure in order to keep a smooth finish, they may begin to stretch slightly over time. At first, it won’t be noticeable but, over time, it may begin to flap as you drive and produce an unenjoyable noise.

Most tonneau covers have a tension rod installed in them, which makes the adjustment as painless as turning a bolt.

Find Affordable Tonneau Covers at SiraWeb

Purchasing a tonneau cover for your truck is as much a choice about your vehicle as it is about yourself. This guide should help you narrow down your choices based on your specific scenario. Regardless of what type and style of tonneau cover you choose, you’ll have a piece of equipment that will make your truck sleeker and more versatile. The savings in gas alone will make the purchase of a tonneau cover pay for itself in a year or two’s time.

Browse the inventory of tonneau covers at SiraWeb today, and find the make and model that best fits your truck. Our team can also answer any questions about our products, so we can make your purchase easier and less stressful. Contact us today!

Measuring Gas Props

measure gas prop

As shown in the Illustration, the open or extended length is measured from one end of the eye ball socket connector to the other end of the eye ball socket connector (end to end) when the prop is completely extended.

The closed or compressed length is measured from one end of the eye ball socket connector to the other end of the eye ball socket connector when the prop is completely compressed.