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Hard to Find Leaf Springs for Classices Cars at New Truck Spring

You may have heard of the old saying, “They don’t make them like they used to anymore!”

In part, this is quite true when it comes to the automotive industry. Earlier cars were considered a luxury for only the rich, and they weren’t mass-produced on the level that they are today. Resources were plenty and the demand for such vehicles for those who could afford it was substantial, but for today’s numbers, the ownership of classic cars are still quite low.

As a result, the materials used back then were heavier, bulker, and today—expensive! What’s more, when it came to the smaller parts of the vehicle like the suspension system, inventors were still in the earlier stages of discovering what makes up a smoother ride—and in essence, still are today!

The Challenge of Finding Replacement Parts

Whether you want to refer to these earlier cars as old or classic, the truth somewhat remains that indeed, they don’t make them like they used to! So for car collectors and classic car owners who may have received their treasure through an inheritance, an auction, or the sheer luck of stumbling upon it in a junkyard, chances are you’re probably having a challenge finding replacement parts for your leaf spring.

The chances are quite slim that you’ll find leaf springs for a classic car at your local automotive store. Even if you’ve gotten by with combing junkyards for parts, when it comes to classic cars, you won’t have much luck. Even if you contacted the manufacturer, the response that you’ll most likely get is that particular model is obsolete and yes, they don’t make them anymore!

So if the manufacturer doesn’t make leaf springs for their earlier models, and finding replacement parts makes finding a needle in a haystack look easy, what exactly are your options? You could, like most ex-classic car owners, scrap the parts out and sell the material, or you can call New truck Spring, a leaf spring replacement and manufacturing company in New Century, KS.

About New truck Spring

New truck spring belongs to Wabco group which is a leading supplier in auto parts. Our headquarters is located in Xiamen.

We own several factories and joint-ventured manufacturers in China which are successfully certified with TS16949 and ISO9001/2009 quality control system.

With more than 10 years’ development, we can supply a full range of spare parts for full trailers, semi-trailers, heavy & light duty trucks agricultural machines and engineering machines. Our main Products are Leaf Spring, Coil Spring, Wheel Rim,Landing Gear,Trailer Jack,Jockey Wheel, Axle, Mechanical Suspension, Air Suspension, Agricultural Suspension, Bogie Suspension,Turntable, Fifth Wheel, King Pin, Brake Chamber, Container Lock, Coupling, Towing Eye, Drum, Hub, Mudguard, Lamp, Excavator Bucket, Bucket Teeth, Track Link, and other Chassis Parts.

With our advanced technology and professional team, we can supply high quality products with competitive price and best service.Being an OEM and after market service supplier, our sales network covers North America, South America, Europe, Middle East,Africa, Southeast Asia and Oceania. Our products enjoy a high reputation in the market. Warmly welcome all over the world friends to visit our Xiamen showroom and our factories to set up a long-term cooperation relationship.

New Truck Spring Inventory

We stock leaf springs for Chevy, Ford, Dodge, Plymouth, Chrysler, Oldsmobile, Mercury, Mazda, Jeep, Toyota, AMC, GMC, and Suzuki Samurai. Because we are the leading authority in leaf spring replacements, we have competitive prices that rival other distributors, giving you the best price possible. We also ship our suspension parts out anywhere in the United States. For quality assurance, we check each product before it’s shipped out to make sure that there’s no damage to your purchase.

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D-2 Air Governor

D-2 Air Governor

Never condemn or adjust the governor pressure settings unless you have checked pressure with an accurate test gauge or a dash gauge that is registering accurately. Standard dash gauges are only required to be accurate to within +/- 10 percent.


Remember the following if adjustment is necessary:

  1. Turn the adjusting screw counter-clockwise to lower the air pressure setting.
  2. Turn the addjusting screw clockwise to increase the air pressure setting.
  3. Be careful not to overadjust. Each quarter turn of the adjusting screw raises or lowers the pressure setting approximately 4 psi.
  4. The cut-in and cut-out range is not adjustable.

The most common cause of governor failure is contamination. Blow out all attaching lines, hoses, etc when replacing a governor. Make sure the reservoir pressure sensing line is routed from the reservoir so that no contamination may enter the line and pass into the governor. A replacement D-2 air governor can be found here.

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General Air System Valve Troubleshooting

Valve leakage is commonly caused by, but not restricted to:

  1. Contamination caused wear, damage, or sticking of the valve’s operating parts
  2. Application of air pressure to a valve’s delivery port from another device in the air system

Determine the port(s) improperly emitting air pressure and perform the following service checks:

  1. Exhaust port leakage at rest – Disconnect the delivery lines. If the leak stops, inspect the device at the other end of the delivery line for leakage. If the leakage continues, inspect and repair or replace the leaking valve.
  2. Delivery port leakage at rest – Consult the appropriate service manual for specific test procedures.
  3. Exhaust port leakage during application – Consult the appropriate service manual for valve specific test procedures.

Always blow out all attaching lines and reservoirs when installing a replacement valve to purge any contamination from the system. Avoid using thread sealant or tape as excess material can itself contaminate the air device.

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Air Valve Part Number References

There is no application guide that tells us what air brake valves the manufacturer used on your truck or trailer. The only people who can tell you what valve the vehicle manufacturer used based on a VIN are the vehicle dealers. With that said, there are other ways to determine which valve you need. You may find a label or a metal tag on the valve that has the OEM part number printed on it. Sometimes, the number is stamped right on the valve body. Raised casting numbers are usually no help at all. You’re looking for stamped numbers here.

If you can’t find any numbers, you can look for a match based on the pictures we provide here on This is easiest if you know at least what type of valve you’re working with. Is it a relay valve or push-pull valve? If you have no idea what kind of brake valve you’re replacing, you will probably benefit from looking over the Bendix Air Brake Handbook.

We try to provide a comprehensive cross reference lists for each air brake valve we offer here, but there are always OE numbers we haven’t learned about yet. The list of pages below contains useful part number references from OE valve manufacturers. You can try your part number at the sites listed or just give us a call or drop us an email for help.

  • Bendix Part Number Search Use this if you have a Bendix part number and want to find their current number.
  • Bendix Cross Reference Cross reference a vehicle manufacturer’s part number to a Bendix number.
  • Haldex Cross Reference If Haldex made it, they should be able to cross reference for your number to the current number. Look at the right side of the page for the cross reference search box.
  • Meritor Parts Online Use the search box at the top of the page.