How to Install Boat Trailer Leaf Springs

If your boat trailer frequently bottoms out, the trailer’s leaf springs may be due for replacement. Over time, the leaf springs may loose their ductility from repeatedly absorbing the up and down motion from your boat’s weight. The springs may also rust from fresh- or saltwater corrosion, compounding the wear and tear. Upgrade your leaf springs to improve your trailer’s handling, smooth bumpy travel and minimize damage to your boat.

1. • 1
     
     Lower the trailer’s tongue jack stand to stabilize the front end. Jack the rear of the trailer, placing a jack stand under the side on which you’ll be working. Place blocks under the front of the trailer for additional support. Place a jack under the rear axle to remove weight from the leaf spring.
   • 2
     
     Remove the U-bolts and retainer bracket that hold the center of the leaf spring to the axle. With the jack supporting the axle, remove the spring bolts from the shackle forks that hold either end of the leaf spring in place. Remove the old leaf spring.
   • 3
     
     Install the new leaf spring in the reverse order that you removed the old one. Fasten the front leaf spring end loosely to the shackle. Rotate the leaf spring up and under the axle. Seat the axle in the center of the leaf spring, and fasten the other end of the leaf spring loosely to the rear shackle fork.
   • 4
     
     Fasten the U-bolts and retainer bracket to the axle. Tighten the nuts in a crisscross pattern for a secure fit. Finish tightening the leaf spring ends to the shackle forks.
   • 5
     
     Tighten all the bolts to the manufacturer’s torque specifications, using a torque wrench.

 

Read More:   http://www.tinmyparts.com/how-to-install-boat-trailer-leaf-springs.html 

Our leaf springs are made with premium quality high alloy spring

Tinmy Trailer Leaf springs are China made, matched pairs. We do not just pull two off the shelf like most spring companies do. Spring arches vary when they come off the production line due to tolerances. We take the extra time to match them. This helps insure proper ride height and a level stance side to side. Our  leaf springs are made with premium quality high alloy spring steel and meet or exceed OEM specifications. The correct springs are determined not only by year and model, but also by body style, engine size and other variables depending on the model. We do not sell one-size fits all. In addition to stock ride height, 1" or 2" lift or lowering height is also available for many models. Both standard and heavy duty springs are also available for many models. If the spring uses a pressed in eye bushing that will come already installed in the leaf spring.

Step 8 Change Trailer Leaf Springs

Trailer Leaf springs are designed to attach to the body of a trailer by means of a shackle. Extending under, and mounted to, the axle, leaf springs provide tension against the axle that is necessary to haul heavy loads. Comprised of three or more separate pieces of metal that are banded together, leaf springs are bent in a slight U shape to provide resistance to heavy loads. Replacing leaf springs may need to be done periodically due to normal wear and tear.

Step 1

Loosen the lug nuts on the trailer wheel with a lug wrench. Typically you will turn the lug nuts to the left to loosen them. Do not completely remove the lug nuts, only loosen them for now.

Step 2

Place a jack under one side of the trailer in a secure location. Raise the trailer with the jack until the tire is 2 or 3 inches off the ground. Place a jack stand on either side of the tire so that they contact the frame of the trailer. Adjust the height of the jack stand until they contact and support the trailer.

Step 3

Remove the lug nuts from the threaded wheel bolts and place them aside for use later. Pull the wheel and tire assembly from the trailer and lay it on the ground.

Step 4

Look under the axle and find the four nuts attached to U bolts that hold the spring assembly to the axle. Remove the nuts with a socket and socket wrench and place them to the side for use later. Remove the metal plate from below the leaf spring and pull the U bolts up and away from the leaf spring and axle.

Step 5

Locate the leaf spring shackle on either side of the axle. The shackle will attach the leaf spring to the trailer and will feature two bolts. The lower bolt attaches to the leaf spring and the upper bolt to the trailer. Loosen and remove the lower nut. Push the bolt through and out of the shackle and leaf spring.

Step 6

Repeat the process to remove the lower bolt from the opposite side of the leaf spring so that the spring can be completely separated from the trailer.

Step 7

Install a new leaf spring in the reverse order that the old one was removed. Secure one side of the spring to the lower shackle and bolt in place using the bolt and nut that was removed. Raise the leaf spring and attach the opposite end to the other shackle. Tighten the nuts on both shackles securely.

Step 8

Assemble the U bolts back around the axle and new leaf spring Place the metal plate over the four ends of the U bolts and secure tightly with the nuts that were removed. Check all nuts and bolts that they are tight and reinstall the tire.

2014 Corvette Still will retain real leaf spring suspension

Tinmy.Co.ltd - When a new Trailer leaf spring seen some subset of the wonders fan base Corvette if its "unique" cross composite leaf spring sheet was finally abandoned in favor of the coil spring suspension and shock absorbers. Generally, these are people who take their Corvettes to the track, those who want to mess with the configuration. A handful of companies alternatives do good business selling conversion kits coil of wire to meet their needs.

A sketch of the new C7 leak that showed up on a personal tinmyparts.com gives us the answer: 2014 Chevrolet Corvette will continue to use transverse leaf springs  made of composite material.

Spring seems like a tongue behind the lower triangle in black and white line drawing front suspension. Compare that to the first pictures of our walkaround suspension of the Corvette Z06, 2011 and you will have a better idea of ​​how it exposes.

No similar pattern looks back on the same tinmyparts.com, but it is clearly the same temporary suspension will work there too.

This crucial information is not to say the whole suspension was deferred. There is far enough detail to see if the geometry is changed. For this, we will have to wait until General Motors is ready to reveal more details, probably debut of the Corvette 2014 Auto Show in Detroit in 2013.

For now, at least, it's safe to say that the Corvette coil-over conversion business side is alive and well. And Vette against Viper wars tuners track days with the Vipers can tweak and tinker with anything they want with the factory coil-over-configuration, while the faithful Corvette C7 will have to open their wallets and make some changes in the basic parts .

Edmunds said: This may seem an old technology for some, but Chevrolet has proven time and again that the transverse leaf spring can be used to great effect with good design.

Trailer Air Suspension System replaces the leaf springs

Trailer Flex Air Suspension System replaces the Trailer leaf springs, improving towing, handling and ride quality
Standard suspensions on trailer and fifth-wheel chassis have looked the same since they first hit the road. Typical configurations enlist leaf springs, shackles and equalizers to tie the axles to the frame. In the last few years, computer technology has helped raise the bar using sophisticated programs that have the capability of simulating the actual movement of components. This allows for detailed “testing” without the need of physically fabricating parts and running trial and error stints on the road. The result has been a number of advanced suspension components that improve ride and handling.
Begin the installation process by removing all parts from the existing trailer axles for reuse on the Trailer Flex Air Ride Suspension System.
Begin the installation process by removing all parts from the existing trailer axles for reuse on the Trailer Flex Air Ride Suspension System.
Thinking outside the box, two brothers from Canada, Dereck and Paul Legros, have invented an all-new air ride configuration for trailers that could very well set a new standard for trailer suspensions. The Trailer Flex Air Ride Suspension System is not just an add-on to the trailer’s existing suspension; it completely replaces the standard components and delivers an ideal ride height, under any payload, resulting in dramatically improved handling, increased safety and reduced driver fatigue.
A big benefit of an air ride suspension that works properly is the elimination of chucking, the front to rear motion that is commonly associated in part with traditional leaf spring suspensions. The adjustable ride height provided by the Trailer Flex Air Ride allows for a
Remove the axles and leaf springs prior to prepping the spring hangers for the new system.
Remove the axles and leaf springs prior to prepping the spring hangers for the new system.
more balanced attitude based on loading distribution and eliminates the side-to-side motion that often occurs with traditional leaf spring suspensions. Once the driver experiences the improvement realized by the advanced Trailer Flex design, he/she will never look back.
Trailer Flex’s patented Air Ride Suspension kit includes four heavy-duty commercial air bags and four hydraulic shocks designed to bolt on to the trailer’s existing spring hangers. In addition, the air compressor and 5-gallon air storage tank allow the user to control the inflation of the air bags via the automatic leveling valve that mounts conveniently between the trailer’s two axles.
Start the installation of the Trailer Flex axles by bolting the axle assembly to the front spring hanger.
Prior to installation, the distance from the ground to the bottom edge of a side molding on the outside of the trailer was measured. The new suspension was installed on a 36-foot fifth-wheel that measured 9 inches lower at the rear than at the front when attached to a four-wheel-drive Ford F-350 dually truck. Ideally, the traveling attitude of the fifth-wheel should be as close to level as possible, something the Trailer Flex components were designed to do.
With the trailer on frame jack stands, the tires and wheels, axles and leaf springs were removed. The test trailer had disc brakes, so the calipers were removed and tied up to the frame. For electric brakes, simply mark and cut the wires. Next, all the parts from the axles were transferred to the Trailer Flex assembly.
Using two floor jacks, the Trailer Flex assembly was raised into the existing spring hangers and bolted into place. The final steps included mounting the air storage tank, compressor, leveling valve assembly, and all valves and air lines onto the Trailer Flex assembly. Each trailer install will be slightly different, and in this case the compressor on/off switch was mounted near the batteries, the air pressure switch was installed next to the on/off switch and the wiring was routed to the compressor.
After double-checking the installation, an angle iron cross member was welded from one side to the other near the axles. Tires and wheels were reinstalled and the jack stands were removed before lowering the trailer to the ground.
The first step in activating the Trailer Flex Air Ride Suspension System is to turn on the compressor and fill the air bags and storage tank. Keeping a close eye on the ride height, the level control valve is adjusted so the air bags settled with 11/2 inches of clearance above the bottom plate. Make sure to check for air leaks at all fittings prior to preparing to hitching up for a test ride. A test drive should be performed before making final ride height adjustments.Trailer Flex’s air suspension is a far cry from riding on leaf springs. The improvement in ride comfort, handling and safety is light years ahead of the standard setup and your trailer will thank you for smoothing out the bumps.

Leaf spring Torsion axle several key issues

The choice between Trailer leaf spring and torsion axles can involve several factors. First, I’ll start by saying each has its advantages and disadvantages and there are many people who think that their choice, whether leaf spring or torsion, is the only logical one.

Here are some of the facts. Standard leaf spring axles use a series of metal springs while torsion axles use a rubber spring for suspension.

Leaf springs  axles are less compact than torsion axles and take up more space and add more weight to your trailer.

Torsion axles cannot be repaired; they must be replaced while leaf spring axles can be repaired. The downside is that leaf spring axles need more maintenance than torsion axles do. The rubber inserts in a torsion axle will tend to lose memory and strength if a loaded trailer sits idle for an extended period of time.

Torsion axles may not perform as well in extremely cold weather as their rubber will lose its elasticity.

With leaf spring axles, the load on the axles is always balanced, this means that if your trailer rides over a rough patch of road and the axles become out of alignment, both axles will still carry the same amount of weight because of the built in weight equalizer. Torsion axles don’t have this feature as they have independent suspension. If there is more weight on one tire this can lead to heat build-up and cause blowouts.

Torsion axles tend to be lower to the ground while leaf spring axles will have more clearance. A torsion axle, with its lower center of gravity will offer improved handling and better cornering.

Torsion axles will have a better ride than leaf spring axles as torsion axles are cushioned with rubber.

Torsion axles are preferred for lighter loads and on-highway use. However, due to the fact torsion axles do not offer weight equalization, they are not suitable for heavier loads, rough roads or off-highway use.

In the end, torsion axles will give you a better ride and require less maintenance than leaf spring axles will. Leaf spring axles are more durable, less expensive and easier to repair. Each has their fans and both work well.（Leaf spring）

Our huge selection of remorque leaf springs for boat trailers

Trailer leaf springs from our Sara trailer parts store with leaf spring and spare parts leaf springs from our leaf spring manufacturer.
Remorque custodian of Tinmy offers a variety of leaf springs. If your trailer has einzelachse Or be replaced or repaired tandem axle leaf spring kits our trailer parts service like changing your leaf springs. Remorque Depot Zingu all ancillary services, cargo or boat trailer leaf springs, leaf spring hangers, ble égaliseur, leaf spring bushings and shackle plates.
our Huge Selection of Remorque leaf springs for boat trailers. Many of these leaf springs also perfectly suitable for most and terräng de remorque. Most trailer leaf spring majors are not brand specific, ie a certain type and size do not just go on an absolutely brand or type of trailer. Their are also some large leaf springs, the most frequently than others. It is very important to take in choosing the right leaf spring precise measurements, euh determine exactly était you need.
There are remorque seen 3 kinds of leaf springs below. First, decide what you need const, then une duree and ultimately sustainability. It is also important to observe that all three types of leaf springs remorque un mounting your trailer frame different holding. They each have there own befruktningen the "hanger" system, euh ensure the suspension of your trailer functioning properly. Dans many tombe is dies together can help determine what type of leaf spring you need ställer you are unsure you.
Adjust the existing spring and after notfartyg form type (double eye, Tofflor-open eye end, slipper-hook end, slippers flat end or slipper-Rayon-end), d'une durée and width.
Pay the number of sheets, each layer is made ​​as a spring metal sheet.
Measure the duree de spring, spring not stalla mourir (Jack up the trailer by the frame) under dernière, is the free dies d'une durée of the spring.
Measure. Middle of the front of the socket in a straight line to the center of the recirculation for dubbel eye  oeil ouvert and leaf springs
Measure from the center of the Front jack in a straigh line un the end of spring hook for, FLAT-END and Radiusfin leaf springs.
The inner diameter of the bushing in the mounting eye needs the spring U-bolts and spring bearing used euh spring mount holes match.
An inner diameter of 16.9 "is the most common size, but some older trailers used 2.1" bushings / bolts.
Shipped Each leaf spring is we sell with a 16.9 "ID bushing in the eye closed
Note also that spring capacity for any given spring is thus an axis should with two 4,000 LB rated 2000 pounds or higher capacity springs are tuned