5x127mm Wheel Spacers Features & Details

Wheel spacers widen your car's wheelbase, improving grip, handling, and precision.

Made from a special aluminum alloy, Sparco wheel spacers are forged from an innovative process that produces a high strength-to-weight ratio. Each wheel spacer is then put through a CNC-machine to obtain an extremely flat surface. All wheel spacers are heat-treated to further increase strength and anodized to guarantee protection from oxidation.

Increases Fender Clearance. If you're running the factory JK wheels with a set wider tires you may encounter wheel rub, but a set of RedRock 4x4 1.5" wheel spacers will increase the fender to wheel clearance to prevent this rubbing issue. As an added bonus RedRock 4x4 1.5" wheel spacers will give your Jeep a wider track for a more rugged appearance.

Hub Centric Design. These RedRock 4x4 wheel spacers use a Hub Centric design meaning that the center of the wheel hub lines up exactly to the diameter of the axle hub giving you a secure fit.

Solid, Rugged Construction. CNC-machined from solid billet aluminum for superior strength and light weight, these RedRock 4x4 wheel spacers come complete with preinstalled studs and lug nuts. These RedRock 4x4 wheel spacers feature a durable black anodized finish for aggressive good looks and long lasting corrosion resistance.

Application. This set of two 1.5" RedRock  4x4 Wheel Spacers are designed for use on 2007 to 2017 Jeep JK Wranglers with 5 lug 5x5" (5x127mm) wheels Spacer lug nuts are included, requires the use of original lug nuts for wheel installation trailer parts .
Fitment: 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017

Full Range and Cheapest Parabolic Leaf Springs

What is a parabolic spring?

Basically a Parabolic Spring is a spring that consists of two or more leaves. The leaves touch only in the center, where they are fixed to the axle and at the outer ends, where they are fixed to the vehicle. In between those two points the leaves do not touch each other as they do with conventional leaf springs.

Each leaf represents a complete spring in it's self and will act as such. To enable this the leaf is tapered, from the center (thick) to the outer ends (thin). This tapering is parabolic, it means that every centimeter (or inch) the thickness of the leaf decreases in an amount that relates to the square function of it's length.

Above: Tapering in an "ideal" mono leaf spring. You can see that one leaf has a similar shape as a multi-leaf spring.
Below: You can see the tapering in the leaves of the spring. The leaves taper from the center till the end (eye) and are separated by distance blocs to prevent contact.

This may sound complicated but in fact it is very simple. Every single leaf will have, more or less, the shape of a
complete multi leaf spring and thus it's capable to cope with the same forces. This means that the ideal parabolic spring could have only one leaf, however, this type of "mono leaf" spring will have very limited articulation/weight ratio due to high internal stresses so a 2 or 3 leaf parabolic spring can divide the stresses more evenly across the
other leaves and thus more axle movement is possible. That is why we designed 2 and 3 leaf springs. An other reason to increase the number of leaves on a parabolic spring is to increase the rate (load capacity). Because every leaf is one spring we can ad or take out leaves without compromising the strength of the leaf it self. So for example we have a 3 leaf rear spring and we ad one similar leaf the rate will go up for about 30% which means that the load capacity increases by +/- 30% (depending on the shackle effect)

Makers, manufacturers and sellers of Parabolic springs and suspension systems

Xiamen Wabco Leaf Spring Factory is a professional leaf spring manufacturer in China,which is founded more than 15 years.
Our company is incorporated into a combination of design, production and sales.Currently employs more than 300 peoples,with a total area of 50,000 square meters.

There are 6 production lines in our factory.The yearly turnout is over 60,000tons.We are successfully certified with TS16949 and ISO9001/2010 quality control system.
We own accurate production equip ment, testing equipment and advanced production technology.
And we have a strong production management team and Technical Team which have accquired a number of national patents.

We strictly regulate product testing process to ensure customers receive qualified products.And we adhere to the people-oriented, quality first, continuous improvement; We developed a full range of leaf springs with different sizes.The main products are Conventional Multi-Leaf Spring, Parabolic Leaf Spring and Z-type leaf spring which are used for heavy duty Trucks (Mercedes Benz, Man, Volvo,Howo, Kamaz) and light duty trucks,trailers, buses, boat trailers and agricultural equipments.
Our high quality leaf springs have been stably exporting to Europe,North American,South America, Asia,Oceania,Africa,and Middle East in the worldwide.
And our Parabolic Leaf Springs have already won good reputation in the market.

Advantages of Parabolic Springs
Parabolic springs are leaf springs that consists of two or more leaves that only make contact in the center and at the outer ends. Each leaf in a parabolic springs is tapered to be thicker at the center and slowly thins out towards the ends. This is different from the conventional leaf springs wherein the leaves are in contact with each other and in which each leaf has uniform thickness from end to end.
parabolic springs
Compared to conventional leaf springs, parabolic springs are able to resist more compression and have better flexibility. The flexibility results to better ride quality. The vertical speed movements are also easier to adjust with these types of springs. Due to the structure and components involved, parabolic springs are also lighter. This is an important factor when the priority is for maximum performance.
Another great application for parabolic springs is for off-road vehicles in which the flexibility of the spring is more effective in keeping the wheels always in contact with the ground compared to stiffer conventional springs.
The only downside to parabolic springs is that it has lesser capability when it comes to carry heavy loads. As such, these types of springs are used for when comfort is more preferred such as the cases with passenger buses. Only the coil springs are offer more comfortable than parabolic springs. However, coil springs which are often attached only to a single point of the chassis have the disadvantage when it comes to load distribution.
There are also newer developments with parabolic springs with brings it close to coil springs when it comes to comfort

Do Parabolic Springs require any maintenance?

A little light oil between the leaves will deter corrosion and prevent squeaks. The rubber bushings should be checked
occasionally. It is also very important to check that the 'U' bolts are torqued up to 70 ft lb. The 'U' bolt torque should be checked frequently under difficult conditions. You should also check that the shackles are tight by loosening the lock nuts and tightening up the shackle bolts. The condition of the axle buffers and check straps should also be checked occasionally.

I notice you use a larger rubber bushing in your spring eyes. Why is that?

Parabolic springs flex more than conventional springs and having an eye 18% larger allows us to use a bushing which can withstand flexure much better than a conventional one. The larger bushing also reduces stresses in the spring eye of the main leaf and insulates the Land Rover better from transmitted road noise.

 What are some of the features of the leaf springs that you offer?
All leaf springs are OEM replacement parts that have been powder coated to protect from rust and other weather elements. These leaf springs are made to fit and additional hardware is readily available throughout the rest of our site. Feel free to check out our u-bolts and eye bolts. To further help you in deciding the right leaf spring for your vehicle, we have Leaf Springs for Truck, SUV, Van reviews and ratings, with a average rating of 5 out of 5 based on 8 ratings throughout.

 Where are your leaf spring replacements manufactured?
A: We we deal with a wide range of manufacturers both overseas as well as local. However, all of our springs are designed with the same specifications and materials as the vehicle’s manufacturer. All leaf springs that we offer are put through extensive quality testing before we stock them in our warehouses to ensure you receive springs that are the same quality as the OEM leaf springs.

Production Process:

Cutting-Punching-Rolling-Quenching -Tempering-Shot Blasting – Assembling – Pre-Compaction – Painting –Testing-Packing

Function:

Leaf Spring connect the axle to the vehicles body,and it plays a role of Buffering, shock absorption and
power transmission.

Material Info.

Description	China	USA	Japan	German	England	France	ISO
GB	AST	JIS	DIN、DINEN	BS、BSEN	NF、NFEN	ISO 630
Shop Sign	Shop Sign	Shop Sign	Shop Sign	Shop Sign	Shop Sign	–
Spring Steel	85	1084	SUP3	CK85	–	FMR86	TypeDC
55Si2Mn	9260	SUP6	55Si7	251H60	56SC7	56SiCr7
60Si2Mn	H92600	SUP6	60SiCr7	25H60	61SiCr7	61SiCr7
55CrMA	H51550	SUP9	55Cr3	525A58	55Cr3	55Cr3
50CrVA	H51500	SUP10	50CrV4	735A51	50CrV4	51CrV4

Note: We could design and produce any type leaf springs as per customers’ drawings and samples.

http://www.newtruckspring.com/full-range-and-cheapest-parabolic-leaf-springs/

Replacement Leaf springs are one of the many suspension parts

Replacement Leaf springs are one of the many suspension parts we specialize in. Since 2006 we have been selling and installing leaf springs for every type of truck, SUV, trailer and motorhome you can imagine. Your leaf springs are a very important part of your suspension and the ride quality you experience.

Over time, the steel in your leaf springs can fatigue or crack. This will cause you vehicle to sag lower than the original designed ride height. Worn leaf springs can also cause your truck to lean to one side. Replace your old leaf springs and get back your ride height and weight capacity. We stock OEM quality leaf springs from various manufacturers.

Steering repair and maintenance

Beyond providing a comfortable and enjoyable ride, these components help make sure your vehicle’s handling is secure. A properly maintained steering wheel and suspension system keep you in control of your vehicle. The suspension system, including your shock absorbers or struts, coil springs and linkage, helps support your vehicle's weight and helps keep your tires in contact with the road. Visit your local Quick Lane,^® and our factory-trained experts can make sure your vehicle’s systems are functioning properly.

Maintenance includes:

• Inspection of all system components
• Check and top-off of power steering fluid
• Ball joint lubrication

Advantages of Motorcraft^® Shocks and Struts

• Reduce wheel bounce, helping provide a smooth ride
• Provide consistent control
• Full range of products for almost every vehicle application and driving situation

How To Replace Air Brake Chambers

How To Replace Air Brake Chambers

1. CAGE SERVICE SPRING. Park your truck or trailer on a level surface, chock the wheels and apply the parking brake. Position a locking pliers against the mounting housing of the failed air chamber and securely clamp it on the pushrod to prevent movement. Release the parking brakes.

2. CAGE PARKING SPRING. Remove the caging tool, also called a T bolt, from the storage tube on the Brake chamber . Remove the plastic inspection plug from the front of the spring-brake’s dome, or pressure cap. Shine a light inside the dome to locate the spring’s caging-tool hole. Insert the tool into the hole and turn it slightly until the T end hooks into the spring’s corresponding notches. Slip a flat washer over the tool’s bolt end and thread on a nut until it rests against the washer. Do not tighten the nut with a wrench unless you’re unable to use the vehicle’s air pressure for the caging process. When the spring is fully caged, the bolt should protrude about 31/4 inches from the dome. If air pressure is unavailable, you’ll need to crank down the nut with a wrench. In this event, do not exceed 35 pounds-feet of torque once the spring is caged. Reapply the parking brakes.

3. REMOVE AIR HOSES. (This procedure is unnecessary if you’re simply installing a new service diaphragm or mounting housing.) Mark the hoses to ensure proper reassembly, then loosen and remove them. Often the hoses will have a swivel fitting at one end and a crimped-on pipe fitting at the other. Remove both hoses at their swivel fittings. If either of these fittings is permanently bonded with corrosion, however, cut and replace the attached hose.

4. REMOVE SPRING-BRAKE CHAMBER. (This procedure is unnecessary if you’re replacing the mounting hosing and spring brake chamber.) Loosen the clamp holding the spring brake chamber to the mounting housing and tap it free with a hammer. Lift the chamber out of the clamp.

5. REMOVE MOUNTING HOUSING. (This and the following procedure are unnecessary if you’re only replacing the spring-brake chamber.) Pull the pin(s) connecting the pushrod clevis to the slack adjuster. Remove the nuts holding the mounting housing to the axle bracket. Use a steel brush to scrub accumulated corrosion and dirt from the bracket’s mating surface, then apply a coat of rust-inhibiting paint.

6. PREP AND INSTALL NEW MOUNTING HOUSING. While the old service spring is still caged, measure the pushrod length between the clevis and the outer surface of the mounting housing. Cage the new service spring by placing it on the floor – open side down – and standing on the housing while attaching a locking pliers to the pushrod. A jam nut should be installed on the new pushrod. Spin the nut down near the housing’s surface. Cut the pushrod so its length matches that of the old one. Use the jam nut to open any damaged pushrod threads. Install a new clevis and secure it with the jam nut. Mount the housing to the axle bracket and torque the nuts to the manufacturer’s specs. Connect the clevis and slack adjuster, and make sure they form a 90-degree angle when fully applied.

7. PREP AIR CHAMBER MATING SURFACE. (This and the following procedure are unnecessary on sealed chambers or complete kit replacements.) Inspect the mating surface of the chamber being reused. Use a steel brush or Emory cloth to scrub accumulated corrosion and dirt from the mating surface. Always replace clamps, bolts and diaphragms that have been in service more than a month, regardless of their appearance. These items are cheap and not worth the risk of failure.

8. INSTALL SPRING BRAKE CHAMBER. Loosely connect two band-clamp halves with one bolt. Lay a new diaphragm bowl-like inside the spring-brake chamber’s open end. Keeping the diaphragm in place with your fingertips, center the chamber on the mounting housing. Drape the clamp over the top of the chambers’ mating surface and gently tap it down. Repeat the procedure with the clamp’s bottom half and thread in its second bolt. Rotate the chamber for optimum access to the air-hose ports and fittings. Closely inspect the clamp to ensure it’s properly positioned all around the chamber, then tighten the bolts equally – moving from one to the other – until the clamp ends are 1/4 to 1/2 inch apart. Apply no more than 25 pounds-feet of torque to them.

9. APPLY AIR, UNCAGE AND LISTEN. Brush a thin coat of thread sealer on each end of your hose fittings and attach them to the proper ports. Release the parking brake and remove the caging tool from the air chamber’s dome. With an assistant using the brake pedal to apply 80 to 100 pounds of air pressure, remove the locking pliers from the pushrod. Listen for leaks. Lacking a helper, you can squirt soapy water on the mating surface then apply pedal pressure. Any leak will quickly generate a lot of bubbles. If the diaphragm hasn’t sealed, you’ll need to repeat steps 1, 2 and 8, locating the trouble spot in the process. Finish by installing the dome’s dust cap and securing the air hoses with plastic ties so they don’t rub against any hard surfaces.

Replacement High Quality SAF HOLLAND Landing Gear

• Reliable, high-quality Trailer landing gear seal keeps water out and extends life
• NAFTA Compliant
• Industry standard TTMA mounting plate
• Gearbox with low-temperature premium lube provides easy cranking and reduces component wear; protection from -65ºF to 225ºF
• Low Speed Gear – 34.4 turns per inch
• High Speed Gear – 4.5 turns per inch
• 17″ of travel
• Exclusive Floating Nut design for high side-load capacity and reduced dock-walk damage
• 80,000 psi minimum yield upper housing and retractable tube
• Three-gear train gearbox handles normal loads with 40% less effort
• Exceeds all AAR M-931 and all TTMA RP-4 performance specifications
• Includes an industry leading 5-year warranty

Product features:

•  Using low temperature chassis lube, the gear box works well from -30°C to 120°C;
•  Works flexibly with grease lubricant on the jack screw;
•  Double speed designed for better efficiency;
•  Wider backing mounting plate for greater load bearing capacity and longer service life;
•  Multi-type shoes available for different usage;
•  Reliable, high quality seal keeps water out and extends the useful life;

Product functions:

•  The device is used for semi-trailer landing gear and special trailers.
•  It can lift and support the trailer when separated from the tractor.
•  Used for all sorts of trucks securely working as hydraulic jacks.
•  The quality is up to the standard of American ABS specification.
•  Please adjust to slow speed when loading, high speed is forbidden, otherwise it may injure the landing gear.

Attention(outside landing gear):

•  Only use low speed gear when the base ground raise the vehicle, high speed gear are not allowed to be used.
•  Confirm the gear meshing completely when the handle is hung on the hook. Avoid the condition that the gear is in the neutral position when the handle hung within the hook.

et is suitable for the majority of applications in the trucking industry. The floating nut riser helps resist the stresses of dock walk found in some air suspensions. Features a 50,000 lb. lifting capacity, 27,000 lb. side load capacity and a 140,000 lb. ultimate load capacity. Includes: 51000 series tandem gear set, universal style crank handle and cross shaft.

Adjusting a Bendix Air Governor

Adjusting the Bendix D2 governor just takes a 7/16 wrench and a screwdriver. The unloading pressure for the typical air brake system is 120 psi but it can be higher up to 130 psi without a problem. Anywhere in the middle is good in my book. This is an easy adjustment as you can see in the video.

The adjustment is touchy and to increase unloading pressure you turn the screw clockwise and counter clockwise to reduce pressure. When the air breake valve compressor reaches it’s limit the governor is there to unload it preventing air pressure from building too high. For you seasoned mechanics this is very elementary information but for those who didn’t know how to make this adjustment then I hope this info helps.

The unloader is located at the air dryer and where the air pressure is directed to when the governor setting is reached. There is an unloader port at the governor that is routed by an air line to the air dryer when 120 psi is reached. What this does is unload all the accumulated oil and moisture that has settled at the bottom of the dryer base.

At 120 psi there is an audible sound of exhaust shooting out the bottom of the dryer housing. This indicates to the operator or the tech working on the air system what pressure the governor is set at. The air dryer needs to be serviced on a regular schedule to clean out the contaminants that accumulate over time.

We service our air dryers every 2 years which includes a dessicant filter and unloader service kit. Also included is a heater that prevents the bottom of the dryer from freezing in the winter time. The AD9 air dryer can be serviced quickly in-frame using a replacement unloader valve assembly that is secured by three bolts. The filter is removed by removing the bottom section of the dryer.

Why choose our 4X100 wheel spacers?

-Made of Aerospace grade 6061-T6 Aluminum Trailer parts
-CNC Machined with 60 degree taper bulge seat lug nuts
-Machine pressed high tensile, heat treated studs
-Grade A lug nuts

Specifications:

Thickness: 1″ INCH OR 25MM
Bolt Pattern: 4X100-4X100 wheel spaces
Thread Size: 12X1.5

These adapters can be used on the following cars, among others:

• Acura: Integra (86-01)
• AMC/Eagle: Alliance/Encore (88-92)
• BMW: 318, 325 (84-91), 320, 323 (79-83)
• Chevrolet: Aveo (04-08), Chevette (75-86), Cobalt (05-08), Nova/Spectrum (86-89), Prizm (90-03)
• Dodge: Aries (81-86), Charger (82-86), Colt (93-94), Daytona (82-84), Neon (4 lug) (94-06), Caravan (84-85), Rampage (78-85)
• Ford: Aspire (94-on), Escort LX (91-01), ZX2 (97-03)
• Geo: Prizm (90-on), Storm (90-93)
• Honda: Accord (82-89), Civic (80-07), Civic Hybrid (03-05), Civic Si Hatchback (02-on), CRX, Prelude (80-91), Del Sol (92-97), Fit (07-08), Insight (00-06), Prelude Si (86-96)
• Hyundai: Accent (00-08)
• Isuzu: I-Mark (83-89), Impulse (83-92), Stylus (91-on)
• Kia: Rio Base, LX, Rio-5 (01-08), Sephia, Spectra (94-04)
• Mazda: Miata, MX5 (90-05), MX-3 (92-96), Protege (90-01), 323-9 (90-94)
• Mini: Cooper (02-08)
• Mitsubishi: Lancer (02-07), Mirage (93-02)
• Nissan: Sentra (83-86), 200 SX (95-97)
• Plymouth: Colt (86-93), Horizon, Omni (79-90), Neon (4 lug) (96-00)
• Saturn: Ion (03-07), SC Series (91-02)
• Scion: XA (04-07), XB (04-07)
• Suzuki: Aerio (02-07), Esteem (95-03)
• Toyota: Celica (86-91), Corolla (88-02), Echo (00-05), MR2 (85-89), MR2 Spyder (00-05), Paseo (92-96), Tercel (83-97), Yaris (07-08)
• Volkswagon: Corrado (89-92), Cabrio (97-03), Jetta 4-Cyl (85-98), Passat 4-Cyl (90-97), Scirocco (81-88)

Our premium quality adapters ensures durability and strength. Price is for a pair (2 pieces).All of our Wheel Spacers and Adapters are made from the highest quality Aerospace grade 6061 – T6 aluminum. Whether  you’re looking to eliminate rubbing, increase turning radius, add spacing for brake clearance, change bolt pattern to fit any wheels, or just want that flush and aggressive stance, our wheel spacers are what you are looking for! Installation is as simple as changing a tire! Our kits come with all accessories needed for full installation. Each of our High Quality kits come with Spacers/Adapters, machine pressed high tensile heat treated studs, and grade A lug nuts. Unlike some of our competitors, we only use machined 60 degree taper bulge seat lug nuts for complete lug centric centering for your security
And if you don't see what you need then give us a call and we can custom make some for you as well.