Ford part numbers are divided in to 3 sections – A 4-digit Prefix, the Basic Part Number andthen a Suffix The 4-digit Prefix breaks down like this – First Digit: Decade – C5ZZ5560D A = 1940’s, B = 1950’s, C = 1960’s, D = 1970’s, E = 1980’s, F = 1990’s, etc. Second Digit: Year […]
Ordering Springs: Articles, Videos, and More
You've settled on getting new springs, but which ones? Wading into spring buying can be like walking into a physics course at MIT - or worse yet, a snake oil sales house.
Learn how to select the correct spring for your application in the articles and videos below.
The Difference Between Important Spring Terms
Mike explains a few key terms related to the design and manufacture of springs of all kinds. We hear a lot of spring terms around here. Here are the important ones. Spring Rate Let’s start with spring rate. Simply put, spring rate is the amount of weight required to deflect a spring in 1 inch. […]
How To Use The Ordering Form
Here we show how you can use the online ordering form to have springs manufactured for your exact vehicle.
How To Order Leaf and Coil Springs Online
Go to the ordering page here.
How To Measure Leaf Springs
It’s not as simple as you think. Download our measuring form and read on to measure divisional length and free arch the right way.
Mono-Leaf Springs Generally Not Recommended
Do you manufacture lowering mono-leaf springs for my 1955 Bel-Air?
Are Welded Coil Springs Salvageable In Any Way?
My vehicle had coil springs welded to the lower perch. What should I do?
Camaro Replacement Spring Options
I need some advice on which Camaro springs to get from someone who’s been in the business. What are the differences between your offerings?
Designing Special Trailer Springs
The leaf springs for my trailer are well beyond operational condition. Do you have original specs for my trailer springs or should I measure them myself?
How Do I Find The Right Coil Springs For My Mustang II Hot Rod?
My coil springs are rubbing on the the upper ball joint housing. Is this ok? What should I do?
Reusing Old Leaves
Why are my springs sagging after the rebuild?
Can I Use Mustang II Springs On A Corvair Suspension?
I’m looking to make my car a daily driver. Would Mustang II coils be a good choice?
Should I Use Variable Rate Coil Springs for a Van?
Can I use variable rate coil springs on my van?
Which Springs Have The Right Capacity For My Truck?
How should I choose which spring has the right capacity for my vehicle?
Trans Am Build Dates
How can I tell when my Trans Am was built so I can get the right springs?
How Do I Find The Springs I Need On This Website?
I can’t find the springs I need online! Why is that?
Choosing Correct Springs For Your ’71 Camaro
Good afternoon Mike, I recently purchased a 1971 Chevy Camaro with a 350 which someone had installed air shocks and what appears to be a new set of leaf springs, 4 possibly 5 leaf on it. I replaced the air shock with a set of standard premium gas charged ones. Unfortunately the back end of […]