HID lamps are 35 watts, while standard halogen bulbs are 55 watts. Although, HID bulbs work with fewer watts, they still produce 3x more light. The higher wattage halogen bulb will be brighter than a 35W bulb but still much dimmer then the HID bulbs.

The cover requires occasional treatment with RaggTopp Vinyl Protectant, a bottle of which is packaged with every Roll-N-Lock cover. It should be applied each time you wash your truck.

In a word, no. Roll-N-Lock is a movable system, making it almost impossible to achieve absolute water tightness. However, properly installed, Roll-N-Lock is a reasonably dry application. Some dripping can occur when parked in a continuous rain. This is generally at the tailgate area. Some applications are more problematic in this regard due to unusual bed configurations. Conditions on the Ford Flareside and Supercrew applications cause the tailgate to be more susceptible to dripping than conventional applications.

The Roll-N-Lock cover will withstand a concentrated load of about 120 pounds. In other words, standing on the cover could cause visible damage. However, damaging the cover with even twice the amount of force referred to does not mean that a forced entry can be achieved. The result would simply be deformation of the cover body. A distributed load, such as snow, is easily managed.

Not waterproof, but water-tite.To insure cargo protection from outside elements,a double seal perimeter gasket is installed all around with the front part having a flap that extends between the front bulkhead and the truck cab. This flap provides additional protection when opening the cover when water is on it and also while you are traveling in in climate weather.

Drilling on most trucks is limited to the tailgate only, as the primary attaching means is accomplished with Roll-N-Lock's patented clamp-on track system. Attachment of the tailgate extrusion (tailgate locking closure strip) requires five small, self-drilling screws, which are tucked neatly within or under the extrusion. The Dodge Ram, Ford Sport Trac, and Ford Supercrew require minimal drilling into the down flange of the bedrail. The Ford Flareside is the exception, requiring coupling flanges which are screwed on to the bed rails.

Yes, however, any additions/modifications will void the warranty. If you do decide to add to your cover call our factory for advice as to where to drill and what size holes will be required for specific size fasteners.

The tonneau cover fabric will not shrink in cold temperatures, to –40 degrees F. Patented automatic tension control system keeps the cover tight whether it is 40 degrees below or 120 degrees above. Sliding Velcro® brand hook on the side rail works with the automatic tension control plungers to keep the cover tight – even when it’s closed!

The TruXedo® Lo Pro QT tonneau cover has automatic tension control. There are two spring loaded steel plungers at the front of the bed that maintain constant tension on the front header, allowing the cover to stay tight in any weather. Initially, you need to set the tension. This should be done during the warmest part of the day by closing the cover, releasing the Velcro® brand fasteners from both sides near the cab, and checking compression of the spring plungers against the front header. Roll cover open to make adjustments. Repeat until satisfactory tension is achieved. Refer to the TruXedo® Lo Pro QT Owners Manual for more specific information.

The TruXedo® Lo Pro QT secures automatically when latched at the rear, and provides added security when used with a locking tailgate. It can not be opened until the tailgate is unlocked and opened. There are no additional locks or sliding mechanisms needed to lock the cover.

By installing an MBRP exhaust system you will see an increase in horsepower, torque, fuel mileage gains may be noticed and a decrease in exhaust gas temperatures (EGTs). By lowering EGTs you will increase your turbo longevity.

While performance gains vary depending on the vehicle you can expect a gain of 5% to 10% in horsepower and torque. For example, with a 2005 Chevrolet Silverado with a Duramax diesel engine you will see a gain of 18 HP. and 28 ft/lbs measured at the rear wheels. You can also expect a reduction in exhaust gas temperature (EGT) by approx 200º F.

-All Original Equipment Vehicles, Ford, Chevy, Dodge, after installing a bugshield can make noise due to redirected air, however CHEVY/GMC are the most likely to have this issue. They noise you are describing, “crackling noise sound at the top of the windshield at highway speeds” is simply caused from loose trim that runs down the sides of the windshield. The noise will happen at about 60 MPH and it depends on which way you are driving into the wind. -Good installers will either install tape or run a bead of caulk in between the trim and the windshield when installing a bugshield on these vehicles, preventing the trim from contacting the glass. -If you are experiencing this, you can fix it by one of these two methods, easily at home. -Other noise can be caused by the plate under the windshield wipers or a strip of rubber under the hood which it’s only purpose is to cover some screws or bolts on the vehicle. This piece of rubber can become loose and create noise. -All of these noises can be easily located and fixed to stop the irritating noises.

If you watch closely you will see that Ford F150 hoods after 2004 were manufactured out of a lighter composite material, therefore the hood now bounces where the hood meets the windshield. This happens without a bugshield installed; when a bugshield is installed it can aggravate an existing problem. Stampede recommends using a very low profile shield and taking your vehicle back to the dealership to have them fix the hood issue as described in the attachment. Attached is the Notice From Ford on the issue.

-Plastic lube plates can be used to avoid messy grease. The plastic lube plate must not exceed 3/16 of an inch in thickness to ensure hitch will operate properly. Lube plates must be 10 inches in diameter or larger to properly distribute king pin weight. -Before each trip or maneuver, operate the handle and check that the jaws open and close freely. -See that all hitch pull pins are in place and the spring retaining pins are installed. -Recheck tightness of all hardware every 1000 miles of use. -Lubrication to the hitch is essential to provide for a good long service life. Any pivoting point inside the head should be lubricated with a white lithium spray lube. The pivoting points outside the head need to be lubricated with a high pressure lube, such as 80/90 gear lube or grease. Reese offers the high pressure lube. This will allow for easier operation of the hitch. The skid plate can use either grease or a minimum of a 10" lube plate. When lubricating you should always remove the old lubricant to remove any road grim that has collected to prevent excessive wearing of components. All hardware should be inspected and torqued periodically per the recommended torque specification in the instruction manual.

Do not install mounting rails over plastic bed liners. Plastic bed liners must be cut out of the way. Base rails may be installed on spray in liner. Note: Consult installer for recommended curing time.

-Plastic lube plates can be used to avoid messy grease. The plastic lube plate must not exceed 3/16 of an inch in thickness to ensure hitch will operate properly. Lube plates must be 10 inches in diameter or larger to properly distribute king pin weight. -Lube plate, provides a greaseless lubricant between the skid plates of the fifth wheel hitch and the pin box. When using a lube plate it should be a minimum of a ten inch diameter to prevent any damage from occurring to the hitch.

GCW - GVW = Max. GTW Example: -2001 GMC Heavy Duty 2500 -4 Wheel Drive Extended Cab -Engine: Duramax 6600 -HorsePower: 300 hp @ 3100 rpm -Torque: 520 lb. ft @ 1800 rpm -Transmission: Allison 5 speed automatic -Axle Ratio 3.73 to 1 -GVW 9,200 lbs -GCWR: 22,000 lbs -22,000 lbs. GCW - 9200 lbs GVW = 12,800 lbs GTW GCW = Gross Combined Weight Actual weight of tow vehicle and trailer combined GVW = Actual weight of the vehicle when fully loaded. It is the base curb weight plus the cargo weight. GTW = The weight of the trailer fully loaded.

Different vehicles have different towing ratings or capacities. Please refer to your vehicle owner’s manual or contact the manufacturer to find your vehicle's capacity.

Anytime you are above the Weight Carrying (WC) rating of your Class III/IV Receiver or you want to improve the ride quality and "towability" of your tow vehicle and trailer combination.

The ability to compensate for off-center loads is one of the best features of the air spring. Yes you can have different pressures in each air spring.

Yes, the more air pressure you add the less vehicle movement you get in return.

The inflation valves should be mounted in an easily accessible location. We recommend placing the inflation valves on or around the rear bumper.

When the vehicle is loaded, the air springs help the existing suspension carry the load and improve the ride a great deal.

Nuts, bolts, brackets, air springs, air line and manual inflation valves. Everything is included for a manual inflation system.

Air Pressure requirements vary from application to personal preference. If a bag is with jounce it may run with no air , bags with put require 5psi at all times to prevent damage to the bag .

The air springs maximize a vehicles carrying capacity within the vehicles GVWR. Do not overload the vehicle.