Schedule Spring Shop Service

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Atlas Spring Service

Automotive, Truck, & Trailer Spring Shop in Austin, Texas

Services offered in our spring shop include:

  • Extensive selection of leaf springs for almost any vehicle
  • Leaf springs re-arched and repaired
  • Extra leaf kits, main leaves and wrappers
  • Utility trailer springs and suspension parts
  • U-bolts made to order - How to measure and identify
  • OEM and Super Duty Coil Springs
  • Hendrickson Walking Beam Service
  • Timbren Ride Control & Suspension Boosters for medium & heavy-duty trucks
  • Heavy-duty helper spring kits
  • A wide range of suspension components including shackle kits, hangers, spring pins, bushings, saddles and trunions.
  • Air Lift suspension air bags for RV’s and Motorhomes

How To Measure Leaf SpringsHow To Measure Utility Trailer Springs

How To Measure Leaf Springs

Leaf Springs are commonly used in heavy duty trucks, pickups, vans and SUV's and are a critical part of the vehicles suspension. At some point they will reach the end of their life expectancy and will need to be replaced, but how do you determine what leaf spring you have on your vehicle?

For do-it-yourselfers, this might sound like a difficult task, but there are a couple of simple ways to identify your leaf spring.

FIND THE O.E.M PART NUMBER

One method of identifying a leaf spring is using the O.E.M. part number. O.E.M or stamping numbers are located on various areas of the leaf spring. You can quickly search for OEM part numbers and SRI numbers by entering the part number in the search box at the top of this page.

FULL TAPER SPRING

Full taper spring stamping numbers can most commonly be found on the end of the first leaf. Other locations include the side, bottom or top of the clip, or at the end of the wrapper.

Full Taper Leaf Spring

MULTILEAF SPRING

Multileaf springs stamping numbers can most commonly be found on the side, top or bottom of the clip. They may also be found on the bottom of the last leaf beside the center bolt or on the end of the shortest leaf.

multi-leaf springs

TRAILER LEAF SPRING

Trailer leaf spring stamping numbers are found on the outside of the hook.

Full Taper Leaf Spring

In many cases, the stamping number may contain only a part of the O.E.M. part number. Ford usually only stamps the prefix and the suffix. The base must be added to complete the part number. For example F3HT5310JA, D7HT5560AUA or D1TA5588AA, whereas 5310 represents a front spring position, 5560 a rear position and 5588 a helper spring.

leaf spring with partial number

LEAF SPRING MEASUREMENT GUIDE

A second method of identifying a leaf spring is by the spring's dimensions. This is by far the most difficult method, but can be used if no stamping number is found or is unreadable. Five measurements will need to be taken to determine your leaf spring model.

THE FIRST MEASUREMENT

The first measurement is the Main Leaf Length. Leaf springs come in different types and will require a particular way to measure that style of leaf spring.

EYE TO EYE

For an Eye to Eye style leaf spring, measure from the center bolt to the center of the eye in both directions along the arch.

full taper leaf spring

SLIPPER TO SLIPPER

For a Slipper to Slipper style leaf spring, measure from the center bolt to the end in both directions along the arch.

multileaf truck spring

EYE TO SLIPPER

For an Eye to Slipper style leaf spring, measure from the center bolt to the center of the eye and center bolt to the end without, along the arch.

measuring a leaf spring eye to slipper

CAMEL BACK STYLE LEAF SPRING

For a Camel Back style leaf spring, measure from the center bolt to the end of the main leaf in both directions along the arch. This is for Mack trucks only.

measuring a camel back leaf spring for a mack truck

SINGLE POINT STYLE LEAF SPRING

And for a Single Point style leaf spring, measure from the center bolt to the end of the main leaf in both directions along the arch. End hole size and distance from the center bolt must be checked.

measure a single point leaf spring

THE SECOND MEASUREMENT

The second measurement taken is the Leaf Spring Width. This is measured at the center bolt from side to side across the leaf.

measuring leaf spring width

THE THIRD MEASUREMENT

The third measurement is the Pack Thickness. This is measured at the center bolt down the side of the spring including all leaves, tow eyes, shock eyes and pads.

measure leaf spring height

THE FOURTH MEASUREMENT

The next measurement is the Leaf Spring Arch. Again, depending on the leaf spring style, a particular measurement must be taken.

EYE TO EYE

For an Eye to Eye leaf spring, use a straight edge to mark the center of the eyes and measure the arch at the center bolt. Always measure to the top of the main leaf and do not include any pads or spacers.

measure leaf spring from eye to eye

EYE TO SLIPPER

For an Eye to Slipper leaf spring, use a straight edge to mark the center of the eye and the top of the slipper and measure the arch at the center bolt.

measuring a slipper spring

SLIPPER TO SLIPPER

For a Slipper to Slipper style leaf spring, use a straight edge on the top of the slipper ends and measure the arch directly over the center bolt.

Slipper To Slipper Arch Measurement

CAMEL BACK STYLE LEAF SPRINGS

For Camel Back style leaf spring, use a straight edge to mark the top of the main leaf in both directions and measure the arch at the center bolt.

camel back leaf spring

SINGLE POINT STYLE LEAF SPRINGS

And for Single Point style leaf springs, use a straight edge to mark the top of the main leaf in both directions and measure the arch at the center bolt.

how to measure leaf spring arch

THE FINAL MEASUREMENT

The final measurement is the Eye Leaf length. This is measured from the center of the eye to the center bolt along the arch.

measure eye leaf length of leaf spring

Utility Trailer Springs

HOW TO MEASURE WHEN REPLACING LEAF SPRINGS ON YOUR TRAILER...

Match the existing spring according to its shape and type (double eye, slipper-open eye end, slipper-hook end, slipper-flat end, or slipper-radius end). Count the number of leaves, each layer of spring metal is considered a leaf. Measure the length of the spring (see diagram below) when the spring is not under load, this is the free length of the spring. Be sure to measure from the center of the attaching eye in a straight line to the middle of the other eye or contact point, except Radius End, which is measured from eye to end of spring. The inside diameter of the bushing in the attaching eye of the spring, I. D. Bushing, needs to match the shackle bolts used to mount spring to hanger. 9/16" is the most common size, but some trailers use 1/2" bolts. All our leaf springs are supplied with a 9/16" ID bushing in the closed eye, but using different bushings can change this dimension. Also note that spring capacity is given per each spring-thus a 4,000 lb. rated axle should be matched with two 2,000 lb. or higher capacity springs.



'FREE LENGTH' MEASUREMENT

We service all makes and models.

Ford, Dodge, Chevy — whatever. If it's a pickup that needs front-end work, we've got you covered.

Schedule Online
Minimize downtime
Friendly Customer Service

Utility trailers, concession trailers and gooseneck trailers
Heavy Duty Trucks-all Makes and Models-from Autocar to Volvo
School Buses, Fire Trucks, Refuse trucks, Cranes
Heavy Duty Trailers Suspensions-Hutch, Neway, Reyco Trailmobile, Transpo and Fruehauf

Schedule Online
Minimize downtime
Friendly Customer Service

Motorhomes, travel trailers, and 5th wheel trailers — if it's a recreational vehicle, we'll fix your front end issues.

Schedule Online
Minimize downtime
Friendly Customer Service
Box truck front end engine service.
Build Fast

We provide the following front end repair services.

  • Front and Rear End Alignment of Cars, Pick Up Trucks, 4x4’s, SUV’s, RV’s, Trailers, Medium and Heavy Duty Trucks using Bee Line and Hunter Alignment systems
  • Wheel Balancing and tire rotation
  • Rack and Pinion steering and CV axle replacement
  • King Pin replacement
  • Repacking or replacement of wheel bearings, U-joint replacements
  • Light and Heavy Duty Brakes
  • Shocks and Struts
  • Ball Joints, Tie Rod Ends, Control Arms, Sway Bars, Links Anti-Sway Bars
  • Utility Trailer Axle Straightening
  • Power steering box replacement-Light and Heavy duty trucks
  • Hendrickson walking beam rebushing-3 year warranty on Atro bushings
  • Torque arms replacement or rebushing-3 year warranty on Atro bushings
  • Suspension air bags-front and rear

Box truck wheel alignment service.

Make An Appointment

Reach out online. We'll email or call you back within 24 hours.
Request Service