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Supply All Kinds of Springs

Kathysia industrial Co., Ltd was reorganized from Zhengzhou spring factory, which founded in 1957, having more than 60 years of professional experience in this field. Kathysia is a designated spring products supplier by the Chinese ministry of machinery industry, and a member of China spring association.

We Supply all kinds of Springs for all applications, If you can’t find a stock spring for your application, or would like to match a competitor’s spring not offered through this website, Our engineering staff is ready to answer your questions or assist in designing the right spring for your application.

Contact Kathysia Industrial for Your Custom Springs

For better quotations, Please include a self introduction and your special requests(if any)

How Upgrading to Heavy Duty Leaf Springs Changes your

How Upgrading to Heavy Duty Leaf Springs Changes Your Vehicle's Ride If your leaf springs have worn out before you expected, you might want to think about upgrading to heavy-duty springs rather than just replacing what you have with the equivalent product.

Leaf Spring Upgrades - Alligator Performance

Buy Leaf Spring Upgrades at Alligator Performance. Replace those old sagging leaf Springs at Alligator Performance. We carry the best brands like Deaver Springs, Cognito, ReadyLift, ProComp and More.

Equalizer Upgrade Kit Trailer Leaf Spring Suspension

Suspension kit includes equalizers and hardware for attaching 4 leaf springs to the hangers on your trailer's frame. Works with 35" axle spacing. Built-in grease zerks for easy lubrication. Heavy-duty shackle straps ensure strength.

Powerstroke Suspension Upgrades - Diesel Power Products

One of the most noticeable updates were to the rear leaf springs. Ford opted for a longer leaf spring, featuring a broader span between the hangers. This results in more available wheel travel, again, delivering a better ride.

Improve Your Ford F150 Suspension, Towing & Load Carry

Jun 05, 2018  The Roadmaster Active Suspension kit is the only rear leaf spring upgrade that is guaranteed to maintain and even improve upon the stock ride at all times. It continues to grow in popularity   and garner rave reviews from F150 owners on every corner of the internet for this very reason.

3 Ways to Upgrade Your Suspension - wikiHow

Sep 25, 2014  If your machine has leaf springs (common on trucks and many cars for rear suspension) you can simply have a leaf added, or 'spring helpers' that bolt on to your existing springs to add tension and strength, giving you as much as a ton (or more) of extra load-bearing capability.

Leaf spring upgrade - Toyota Tundra Forum

Oct 27, 2018  Leaf spring upgrade. Discussion in 'Suspension' started by TxBlaster74, Oct 26, 2018. Post Reply. Oct 26, 2018 at 8:33 AM #1 #1. TxBlaster74 [OP] New Member. I mean if I'm running a spring helper and an Add a leaf for a year or two for towing I'm fine but need to do a full leafpack swap in the long term. Mwray8909, Oct 26, 2018 #8.

Leaf Spring Replacement Ford F250 - YouTube

Apr 28, 2018  After bringing the rotavator home, Dad was finally convinced we needed leaf springs. The most convenient part of this project was that there is no factory bed in the way; the easy dumper saves the

Leaf Spring Suspension Solutions - Made in the USA

Turn your passive rear leaf spring suspension into mechanical active suspension. Improve load carrying, make towing safer, reduce vehicle sway and smooth ride quality. Made in the USA - Roadmaster Active Suspension is the ultimate assist! Fit your vehicle today!

Replacement Leaf Springs for Auto, RV, and Trucks

Leaf Springs - Auto, Truck, RV - Leaf Springs 22-1013 Rating: 5 Stars I Would Buy All Hard To Find Parts For Suspension Here was a perfect fit , price was great and received them in a timely manner. Being a 2000 chevy blazer s10 4dr, parts were hard to come by , but these guys had them and they fit perfectly.

Leaf Spring Suspension Solutions - Made in the USA

Turn your passive rear leaf spring suspension into mechanical active suspension. Improve load carrying, make towing safer, reduce vehicle sway and smooth ride quality. Made in the USA - Roadmaster Active Suspension is the ultimate assist! Fit your vehicle today!

Improve Your Ford F150 Suspension, Towing & Load Carry

Jun 05, 2018  The Roadmaster Active Suspension kit is the only rear leaf spring upgrade that is guaranteed to maintain and even improve upon the stock ride at all times. It continues to grow in popularity   and garner rave reviews from F150 owners on every corner of the internet for this very reason.

Multileaf Spring Upgrades for ’62-67 Model Novas - GM Classics

Sep 11, 2018  This month, I am writing on the rear multileaf spring upgrade for ’62-67 model Novas. These First-Generation cars used monoleaf springs to hold up the rear of the car. This setup was developed because it gave the cars a somewhat soft and comfortable ride overall.

BelAir Leaf Spring Upgrade - Speedway Motors

Dec 07, 2016  BelAir Leaf Spring Upgrade. By Kevin Webel. 12/7/2016. Tags: Tech, Leaf Springs, Chevy Bel Air, 1954 Chevy Bel Air, Street Rod, Street. If you have a 1949 to 1954 Chevrolet car and want to convert the old torque tube rear end to an open drive, Speedway Motors sells the kit you need. I wanted to update my 54 Belair 4 door to what many old

2010-2020 F250 Auto Spring Rear Add-a-Leaf Kit FD250AAL

Each one Auto Spring's F250 Add-a-Leaf Kits comes with a pair of high-quality leaf springs, new pins, and installation instructions. The springs are manufactured out of extremely strong, US-sourced 5160 tempered spring steel that allows them to hold up to just about any application that you have in mind.

Leaf spring upgrade - My Grand RV

Jul 27, 2019  We have 2017 Solitude 379fls. We ve been stuck in Coeur d Alene, ID, waiting on upgraded leaf springs from Grand Design since Monday. When they arrived today, there was only one set of springs and no U-bolts. This is our third broken leaf spring, and every mechanic and GD Rep we have talked to has advised replacing U-bolts when replacing springs.

Leaf Spring Upgrade Experience? - My Grand RV

May 08, 2018  Attached are the springs that Pat and I considered for our 303 upgrades. We both ended up with original 4 leaf 2600 lb springs on the right side and 5 leaf 3000 lb springs on the left side. These are Chinese springs as well. The dimensions on this chart

Leaf spring upgrade recommendations? - Tacoma World

Oct 30, 2015  I took mine to a spring shop and they re-arched the springs and added a leaf and replaced the bushings for $420. I thought that was ok. If I wanted another leaf to carry more weight, I'm sure they would have done that too. Most decent sized cities have a spring shop 'cause all trucks need springs

Buy Leaf Springs of OEM Quality

Replace factory leaf springs or increase load capacity with a heavy duty leaf spring upgrade. We carry almost every front and rear leaf spring available, including the more popular f250 and toyota rear leaf springs. Often, other components such as bushings, u-bolts and shackles need to be replaced and are also available on our website.

Heavy Duty Leaf Springs for all trucks and tractors

Click the heavy duty leaf spring part number or the standard spring number to find pricing, shipping costs, and to order online. Most Leaf Springs can be shipped out the same day of the order. We can also add leaves and modify leaf springs to meet your specific needs.

Leaf Springs - OE Replacements, Upgraded, Lifting & More

Leaf Springs Whether you seek to smooth the trail, stabilize your loads or just add some height for style, we’ve got the leaf springs to do it. From load control springs to monster lifts, these leaf spring kits are custom designed just for your year, make and model.

Amazon.com: American Automotive 2"-2.5" Rear Add-A-Leaf

American Automotive's 2.5" wide Add-A-Leaf springs are made from OEM Grade Carbon Steel and are an easy way to increase ride height without having to replace the entire spring. Our Leaf springs are designed to increase rear load capacity to prevent the factory leaf sag caused by heavy loads.

C5/C6 Corvette Suspension Tech: Coilovers vs. Leafs

At its most basic, the C5 and C6 Corvette suspension uses upper and lower A-arms suspended by transverse leaf springs made of fiberglass. At first, many people are surprised to find out that a car as technologically advanced, and well known for its handling capabilities as the Corvette actually still uses a suspension design that was first developed for horse-drawn buggies.

Excursion Leaf Spring Swap with F250 Springs - SD Truck

Ford Excursion springs have around a 1980lb capacity per side in the front and 2275lb capacity per side in the rear, the F250 springs on the other hand will give you between 2030lbs and 2630lbs per side in the front and 3000lbs per side for the rear, this is a substantial upgrade. When researching Ford Leaf Springs you will see a lot of

Leaf Spring Upgrade - Canter 4x4 - 4WDAUS

Mar 05, 2016  Leaf Spring Upgrade – SSA Australia Getting the ride right for 4WDAUS truck was one of the hardest exercises we undertook, The process took far far longer to get right than we had hoped and we under took a few Leaf Spring Upgrades from a couple of manufacturers.

Amazon.com: American Automotive 2"-2.5" Rear Add-A-Leaf

American Automotive's 2.5" wide Add-A-Leaf springs are made from OEM Grade Carbon Steel and are an easy way to increase ride height without having to replace the entire spring. Our Leaf springs are designed to increase rear load capacity to prevent the factory leaf sag caused by heavy loads.

LIPPERT COMP RV Trailer Upgrade Kit Double Axle Leaf

Buy LIPPERT COMP RV Trailer Upgrade Kit Double Axle Leaf Spring Shackle Plate: Accessories - www.tvimpermeabilizzazioni.it FREE DELIVERY possible on eligible purchases

Leaf Spring Upgrade? - Tacoma World

Oct 08, 2019  The primary purpose of the upgrade would be to get a smoother ride, not necessarily for towing or hauling. I understand the stock leaf springs are a bit on the weak side. I already have the rear lifted two inches, so this upgrade won't affect the truck's stance.

Leaf Springs 101: Talking With Deaver Suspension - FOUR

May 23, 2017  Leaf springs are one of the oldest forms of suspension. For hundreds of years, leaf springs have been used on automobiles, carriages, trailers, and

Equalizers Trailer Leaf Spring Suspension - www.tvimpermeabilizzazioni.it

These rubberized equalizers replace the standard equalizers on your tandem-axle trailer's double-eye leaf spring suspension. The rubber cores absorb road shock and help reduce chucking for a smooth ride. Greasable pivot offers easy lubrication.

Leaf Spring Upgrade - Toyota Tundra Forum

Mar 14, 2017  Pro Comp 6 Inch Stage II Lift Kit with Icon 2.5 coil overs and piggyback rear shocks, SPC Upper Control Arms, Atlas 6” Leaf Springs, Coach Builder Steering kit, Coach Builder +3 Shackles, BDS Recoil Traction Bars, Amp Research steps, Fuel Nutz two piece 20x12-44 offset wrapped with 38” Toyo MT tires, LineX Bed Liner, Viper 5706V Alarm and

Load Plus - Ironman 4x4

Load Plus is the most economical leaf spring upgrade available, providing the benefits of better load handling, whist enabling easy return to stock suspension characteristics when desired, and can be easily fitted at home with basic equipment.

Atlas Leaf Springs

ATLAS LEAF SPRINGS. Here you can purchase anything and everything leaf spring. Don’t see it on our page? We have it or we can get it, please call or email us! PERFORMANCE. LEAF SPRINGS. MINI PACKS. OEM LEAF SPRINGS. LEAF SPRING. COMPONENTS. Atlas' hand-built lift springs.

ARB Old Man Emu 4X4 Suspension

Designed for superior performance across all terrain, an Old Man Emu suspension upgrade by ARB will provide noticeable improvements to a vehicle’s performance, including load

Fixing the Excursion Suspension - NC4x4

Apr 09, 2012  I reused the stock Excursion 2 inch block. I also used the Excursion spring centering bolts and U bolts. The Modified B code is a little hard to find, but after looking across alot of forums, I think I got it down: B code springs, with Excursion aluminum leaf spacers, and the lower 2 leaves from the excursion pack. I also used the B code overloads.

1965-73 Mustang Leaf Spring Kit (Grab-A-Trak®) - Mustangs

1965-73 Mustang Leaf Spring Kit (Grab-A-Trak®) Performance 4-Leaf Standard Eye Leaf Springs Upgrade to mid or reverse eye leaf springs for $20 more. Upgrade to 4½-leaf spings for $20 Upgrade to 5-leaf springs for $40 more and a $14 box charge. A Pair of New Spring Eye Bolts With Lock Nuts;

Leaf Spring Shackles and Hangers - Summit Racing

The hanger is the bracket that attaches to the vehicle, and the shackle is the link between the hanger and the end of the leaf spring. If off-road action is your passion, you’ll want to beef up your leaf spring shackles and hangers to handle the greater stresses, or use a

Toyota Tundra Performance Leaf Springs – www.tvimpermeabilizzazioni.it

There are many ways to upgrade your vehicle’s suspension. Installing better leaf springs will increase the spring rate, allowing your truck to carry more weight without any problems. In our online store, we carry a wide variety of Toyota Tundra performance leaf springs to choose from.

Tacoma Leaf and Coil Springs & How to Upgrade Them

Leaf springs consist of one or many pieces of rectangular spring steel. The arc-shaped architecture of leaf springs is many times more capable than coil springs in terms of carrying heavy loads. In the case of a Tacoma, the rear axle is suspended by a multi-leaf spring, with each end of the spring

Complete Narrow Leaf Spring Upgrade Kits

Our new CPP Narrow leaf spring upgrade kits are available for 1967-81 Camaros and 1962-74 Novas. These kits allow for the absolute largest wheel and tire to be used without relocating the leaf springs front and rear hangers inboard.

The Advantages And Disadvantages Of Leaf Springs

Leaf springs are a basic form of suspension made up of layers of steel of varying sizes sandwiched one upon the other. Most leaf spring setups are formed into an elliptical shape through the use

Sagging rear leaf springs - upgrade to what? - Vintage

Sep 30, 2015  While you have your leaf springs off, take a very close look at your rear frame rails and verify there is no rust or other problem before installing the new springs. New leaf springs was one of the first things I did on my '65 after buying it 18 years ago, and I was horrified to discover one of the rear frame rails was shot.

Rear leaf spring upgrade options - Nissan Titan Forum

Jan 09, 2016  The Deaver leaf springs will make your rear end squat even worse. On my old '91 Ford Ranger I replaced the OEM leaf springs with the complete Deaver replacement and good grief did it squat bad. I gained 4" of travel but put a couple hundred pounds of weight in the bed and it looked bad. The Deaver didn't make the ride any better.

Leaf Spring Upgrades - www.tvimpermeabilizzazioni.it

Jul 10, 2006  In order to cure the usual tail-down sag of your camaro, several people reccomended purchasing the 1980 z/28 model rear leaf springs. With 4 leafs and a bit more spring rate, the 80 z springs are available from eaton for a fair price and from NPD for even cheaper.

Leaf Spring Hangers, Leaf Spring Shackles, Complete

LIGHT DUTY TRUCK LEAF SPRING HANGERS. LIGHT DUTY TRUCK LEAF SPRING SHACKLES. ATS Offers Truck Suspension Parts In Complete Suspension Kits. Replacement Suspension Parts For Leaf Spring Suspension Include Truck Leaf Spring Shackles, Truck Leaf Spring Hangers .Leaf Spring Hanger Shackle Assembly Kits For Ford, Dodge, Chevy/GMC, Toyota, Freightliner, Mazda and more.

Performance Leaf Springs - Lifting, Lowering, Add-A-Leaf

Leaf spring suspension is old technology, and leafs have been supplanted by modern multi-link systems with coil springs on most late-model cars. But they were original equipment on many performance cars in the past, and some fine handling sports cars still use transverse leaf springs made of advanced composite material.

Should I upgrade my trailer suspension? - Without A Hitch

Upgrading individual components can increase the maximum load carrying capacity of the trailer. Common leaf springs as well as coil springs and dampers/shock absorbers can all be upgraded to provide greater load carrying capacity.

Official "V-Code Leaf Spring Swap" Thread - FordExcursions

Apr 04, 2016  Thanks for the tutorial, very helpful. I was able to swap the passenger side leaf spring with no issues. On the driver side, I ran in to the issue where the aft spring bolt wouldn\\'t come out because the drive shaft was is the way. I was able to jack the truck up and get the bolt out.

How-To: Going Fast With Leaf Spring Suspensions

Leaf Spring Suspension At A Glance. The leaf spring suspension we see in many muscle cars is called a semi-elliptical leaf spring arrangemen t, meaning there’s one spring on each side and not two connected to each other to form a complete circle.Leaf springs actually date back to medieval times — that’s how old the technology is — but these days, trucks are the only late model vehicles

YJ Spring Conversion: 1955-1975 CJ to YJ Spring Conversion

So using stock Wrangler springs you would finish with about 1.5-1.75" of new lift with the HI-Shackle kits. Rocky Road also recommends and sells Jeep Wrangler springs, both stock and Old Man Emu lifted springs (for a total new ride height of about 3-3.5"), which will work on your CJ after the conversion.

YJ Spring Conversion: 1976-86 CJ to YJ Spring Conversion

For those who are keeping the springs under the axle and want to upgrade their rear Ubolt plates, check out our Heavy Duty Ubolt Skidplate kits . Kit below for use "with our SOA" system does not include necessary wider Ubolt plates as these are provided with our SOA system.

Toyota Tacoma Leaf Spring - Auto Parts Warehouse

If you're looking to upgrade or repair your Toyota Tacoma with a Leaf Spring Auto Parts Warehouse is here for you. Free shipping on orders over $50 always makes purchasing a little easier.

Complete Narrow Leaf Spring Upgrade Kits

Our new CPP Narrow leaf spring upgrade kits are available for 1967-81 Camaros and 1962-74 Novas. These kits allow for the absolute largest wheel and tire to be used without relocating the leaf springs front and rear hangers inboard.

Mitsubishi Fuso FG 4x4 Offroad Leaf Spring Suspension Upgrade

Fuso Next Generation Suspension Upgrade A solution that many of our customers are very happy with: 1. To start with, our supplier have built a stronger spring and given it more camber (Curve). We have a 6 leaf spring against the original 5 leaf. You can see the difference in the photos below.

How To Replace A Caravan Leaf Spring - Without A Hitch

With the bolts removed, the leaf spring pack should drop out and easily be removed. 5. BOLT THE NEW SPRING UP TO THE HANGARS. Fitting the new leaf spring pack is simply a reversal of the process. The bolts securing the leaf spring pack at each end (at the eyelets) should be

Leaf Springs upgrade. - S-10 Forum

May 07, 2014  Hello, I was wondering if you would know a little bit about different leaf spring set ups for a 1989 s15. I got a new set of springs with the truck and they are the same length as my original springs. When I took off the passenger side spring pack, measured the height of spring pack and it was 9 inches tall. The new set is 7 and 1/2 inches tall.

Tacoma Replacement Leaf Springs - Listing Your Options

Sep 18, 2013  We’ve already established that the stock Toyota leaf springs offered on the Tacoma are designed in such a way that factory Tacoma leaf spring breakage is almost guaranteed. Fortunately, Tacoma pickup owners are blessed with a wide range of aftermarket spring choices which are not only built to a higher standard than Toyota factory replacements, but which are also often much cheaper

Leaf Spring - Best Replacement Leaf Springs at - AutoZone

Get the job done with the right part, at the right price. Find our best fitting leaf springs for your vehicle and enjoy free next day delivery or same day pickup at a store near you!

52" Front Spring Swap - K5 BLAZER NETWORK

Feb 02, 2016  I don't know about your leaf springs, but the ones I had were crusty with dirt, road grime and some surface rust. The whole point of doing this upgrade is to increase flex and with gunked up springs you're just not going to get the maximum benefit of the swap. The first step is to get your spring packs taken apart. The center pin uses a 9/16" nut.

Stop The Squat - Towing Suspension Upgrades - FOUR WHEELER

Jun 01, 2013  One of the most inexpensive and easiest ways to get a little lift from the rear of your truck is by installing an add-a-leaf. An add-a-leaf, such as the ones available from Rancho Suspension, is

C3 Corvette Rear Springs & Mounting (1968-1982)

Whether you’re maintaining your Shark Corvette or completing a full restoration, our selection of C3 Corvette Suspension & Driveline parts is unsurpassed. Our inventory selection includes fiberglass rear springs and leaf rear springs, along with coil over suspensions, rear spring liners, and cushions to aid in your Corvette restoration.

Buy Replacement Leaf Springs - OEM Quality Leaf Springs In

Leaf Springs - Leaf Springs 22-1013 Rating: 5 Stars I Would Buy All Hard To Find Parts For Suspension Here. was a perfect fit , price was great and received them in a timely manner. Being a 2000 chevy blazer s10 4dr, parts were hard to come by , but these guys had them and they fit perfectly.

Trailer Suspension Upgrade system by MOR/ryde - 15-1195

Upgrade suspension systems for trailers. Great Discount prices on other RV towing parts and jacks. - Low Cost Shipment Methods Available - 15-1195

Leaf Spring Upgrades - Alligator Performance - Cognito

Replace those old sagging leaf Springs at Alligator Performance. We carry the best brands like Deaver Springs, Cognito, ReadyLift, ProComp and More. If you need help finding what you need or figuring out the best package for you and your rig give us a call or email us at [email protected] and well be more than happy to assist you.

Upgrade from Single 2,990# Leaf Spring to 5,200# Leaf

More Items in Axle Upgrades Upgrade from Single 2,990# Leaf Spring to 5,200# Torsion Axle w/ Brakes Upgrade from Tandem 3500# Leaf Spring to 7000# Leaf Spring Axles

SuperSprings® International, Inc. - Innovative Suspension

The original self-adjusting suspension stabilizing system, designed to level rear-end sag caused by heavy loads on rear leaf spring suspension – SuperSprings. The world’s first and only airless air spring! SumoSprings do not leak air and do not require airlines or compressors.