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Ford Performance Lowering C-Springs (79-04 All, Excluding 99-04 Cobra)

Market Price $203.99 You Save 12% ($24.00)
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  • Item 24006
  • MPN# M-5300-C

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    Features, Video & Details

    • Aggressive Stance
    • Lowers Center of Gravity
    • Improves Handling
    • Standard Spring Rate
    • 1979-1993 Estimated Drop: Front 7/8"; Rear 1/2"
    • 1994-2004 Estimated Drop: Front 1-1/8"; Rear 3/4"
    • Clears Stock and Aftermarket Wheels & Tires
    • Fits 1979 to 2004 Mustangs, Excludes 1999-2004 Cobras

    Review & Installation Video

    Review & Install Video

    Hey, what's going on guys? Adam here with Today I'm bringing you a detailed overview and installation of the Ford Performance Lowering C-Spring, which is available for all '79 to '04 GT, V6, and Mach 1s, as well as all '93 to '98 Cobras, both Coupe and Convertible. So in this video, I'll be going over the drop you can expect when adding these lowering springs to your Mustang, as well as all the performance benefits as far as handling is concerned when you do get them installed. I'll top the video off with that installation which I'll let you know upfront here, gets a two out of three wrenches on our difficulty meter. Not the hardest job in the world, but it does take a little bit of know-how to get done, and of course, caution and patience. So, the Ford Performance Lowering C-Springs will be for any '79 to '04 Mustang owner who is really looking to get a more aggressive stance as far as drop is concerned. This obviously doesn't give you the biggest drop in the world, which I'll touch on in just a second, but it's, more importantly, to pick up the aggressive standard suspension handling performance that goes along with the C-Spring from Ford Performance. Now, of course, there are a number of benefits that come along with lowering your Mustang. Now, of course, when you lower the center of gravity, you're greatly improving the handling performance and suspension performance on your Mustang, while also getting a more aggressive stance, a more muscle car look, depending on how low you go. Now, this particular set we have here from Ford Performance, the C-Springs doesn't give you the lowest drop in the world, but you do get a slightly more aggressive stance with it. So, the first thing I wanna touch on here, of course, is going to be how low exactly are you taking your Mustang when adding the C-Springs to your own Fox Body? Now, the Fox Body, the SN95, and the New Edges all have different drops depending on which body style you have. So, the first thing I wanna touch on of course is the Fox Body. Now, from '79 to 1993, you can expect a seven-eighths of an inch drop in the front and a half inch drop in the rear. Not the biggest drop in the world, but it does lower the center of gravity just a little bit, so of course it will improve the suspension and handling performance of your Mustang. So, next up, of course, is going to be the SN95 and the New Edge Mustangs. For those body styles, you can expect to be getting one and one-eighth's of an inch drop in the front, and three-quarters of an inch in the rear. Again, also not the biggest drop. It's a little bit more than the Fox Bodies of course, but either way, no matter what body style you have, you can rest easy knowing that this will all clear all the factory wheels, and of course aftermarket wheel and tire combos, you would have gotten on the American Muscle website. So, when you're shopping around for lowering springs for your own Mustang on the AM website, you'll notice Ford Performance has a couple of different options as far as the letters are concerned. We have C-Springs here, but they also offer B-Springs and G-Springs on the AM site, and although they have slight differences, they might not be so obvious when you're shopping around for yourself. So, I'm gonna give you an explanation here just to clarify things a little bit further. So, I'll start with the G-Spring simply because they are the easiest to differentiate. Now, the G-Springs from Ford Performance will give you a half-inch drop in all four corners, whereas the C-Springs and B-Springs will give you exactly what I mentioned earlier in this video. Now, the C and B-Springs from Ford Performance are only gonna be differentiated simply off of the spring rate. Now, the spring rate for the C-Springs we have here will be standard, and the B-Springs that are offered on the website will be a progressive spring rate. Now, although the C-Springs and the B- Springs from Ford Performance had the same ride height drop, they will react differently in different driving situations. So, the B-Springs that Ford performance offers has that progressive spring rate which basically means, under normal driving conditions they'll be a very comfortable ride, nothing too crazy, something perfect for a daily driver, or a commute to work. Now with that said, it will also react very differently under hard driving situations. Once you take a hard turn or something like that, it'll compress and stiffen up to adapt to that situation. Progressive spring rates are typically really used for daily drivers and weekend warriors, and something of a light strip usage as well. You might not be taking it to the track very often, in which case progressive springs might be for you. Now, on the other hand, the C-Springs we have here have a standard spring rate. Standard spring rate it's basically linear, so it doesn't adapt to the different situations, it stays the same throughout all driving conditions. Now, although this is a very good for the street, it's really geared more for the track or harder driving situations which allows a driver to accurately or more accurately predict how the springs will react in certain driving situations. Honestly, it all just comes down to how you want your springs to react whether you want it to be predictable like the standard spring rate, or if you'd like it to adapt a little bit further like the progressive. Now that you've got a little bit more of an understanding on the progressive spring, the standard spring, the B, the C, the G, all the other options that Ford Performance offers, let's talk about the price tag because it definitely comes into play when you're picking out your lowering springs. Now, the Ford Performance C-Springs that we have here with the standard spring rate come in just north of the $150 mark. My personal opinion, a more affordable option there for your ride. Not too much of a drop, so there really isn't too big of a price tag there. Now, the B-Springs come in with the progressive spring rate, just a little bit higher at the $200 mark and the G-Springs if you wanted to go with that to get the bigger drop that will come in a little bit higher at the $220 mark. Altogether, it comes down to what you expect in ride height, and ride comfortability as far as spring rate, so you wanna make sure you're checking it out when you're looking on the site. Now, the good thing about almost any spring on the market for your Mustang for at least the '79 all the way up to the 2004 Mustangs, the installation pretty much stays the same. And when we're talking about the install, it's not the hardest job in the world, but it does require a little bit more know-how, at least a little bit more caution, and if you have a helping hand on deck that will definitely make the process go smoother. As far as tools are concerned, you wanna have a ratchet and a simple socket set on deck, as well as a pry bar to get those factory springs out, which might give you a bit of a fight. And definitely, jack and jack stands, or if you have a lift, that makes it a hell of a lot easier. As far as timing is concerned, about two hours start to finish on the install, maybe a bit more if you need a little bit more time, but overall, gets a two out of three wrenches on our difficulty meter. Now to kick things off, we'll start with the rear, because it is a little bit easier, one less step to take care of. All you'll have to do is jack up the car and of course, remove one of those wheels. Now at this point, you wanna place the jack under the rear differential pumpkin, and jack that up to relieve the pressure off the shock bolts. Once you take care of that, you can undo the bottom shock bolts of course, and then slowly, and I mean slowly, lower down that pumpkin on that jack, and this will relieve the tension on the lowering spring in the back. Once that spring is out of place, you can put in the C-Spring from Ford Performance into its place, and redo that process in the opposite order, jacking up the differential, of course, re-bolting that shock, putting the wheel back on, and dropping the car on the ground. The front process is going to be extremely similar. There's only one more step involved here. So, of course, you're gonna have to jack up the front end of the car, remove the wheel, and then you wanna support, instead of the differential pumpkin, you wanna support the lower control arm. Once that's taken care of, you wanna unbolt the sway bar end link, unbolt the bottom of the shock tower, and then, of course, you're gonna have to remove that spring. Now, removing the spring, you wanna be safe and secure as just as you were in the back, slowly lowering down that lower control arm, in order to get that spring out. Again, a pry bar might be necessary, but once it's out, repeat the process in the opposite order using the C-Springs, and you'll be good to go. Overall, about two hours or so on the install, two out of three wrenches on our difficulty meter. Just to wrap things up guys, if you're the owner of a '79 to '04 Mustang, you might be looking to pick up a set of lowering springs to get a more aggressive stance on your pony, as well as improving the center of gravity or handling performance. If you're looking at a standard spring rate, you might wanna check out the Ford Performance C-Springs which I have here, which are available at

    Improves Handling. These Ford Racing "C" Springs will lower your Mustang approximately 1" giving it a more aggressive stance and a lower center of gravity greatly improving your pony's handling over the stock springs.

    Aggressive Stance. Adding a set of lowering springs to your Mustang can greatly improve its appearance by getting rid of that "4x4" look that it came with from the factory for a more aggressive stance.

    Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your stock size wheels and tires, as well as AmericanMuscle's pre-configured wheel and tire combo kits (specific to your generation), to assure proper clearance with no rubbing issues.

    Application. The Ford Racing C Springs fit all Mustangs from 1979 to 2004, except 1999-2004 Cobra's with Independent Rear Suspension (IRS). Lowers 1979-1993 Mustangs approximately 7/8" front; 1/2" rear. Lowers 1994-2004 Mustangs approximately 1-1/8" front; 3/4" rear.

    Technical Note. These springs will not fit 1999 to 2004 SVT Cobra's with Independent Rear Suspension (IRS) or GT Mustangs converted to IRS.

    Spring Rates:

    • Front: 650 lb/in.
    • Rear: 200-300 lb/in.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (4) Lowering Springs
    Installation Info
    Tech Specs
    Springs Specifications
    Spring Rate: Front: 650 lb/in.
    Rear: 200-300 lb/in.
    Usage: Street
    Year: 1979-2004 Model: All except IRS Cobra's
    Progressive or Standard: Standard Estimated Drop: 1979-1993: 7/8"F / 1/2" R
    1994-2004: 1-1/8"F / 3/4" R
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 93, 94, 95, 96, 97, 98
    • Cobra R - 95
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

    Does not fit 1999-2004 SVT Cobra's with Independent Rear Suspension (IRS)

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    16 Questions / 6 Answers

    Ask a Question

    What is difference between C and B springs from ford racing?


    • While C-Springs and B-Springs have the same drop, the difference between the two are their spring rates. C-Springs are Standard Rate Springs, which means they are at a constant rate and won't vary while driving. These are better suited for those looking strictly for the performance gains and don't mind a stiffer ride. B-Springs are Progressive Rate Springs, which means the spring gets firmer as it gets compressed. These springs are great for daily street driving, keeping a more comfortable ride.


    Helpful (4)

    I bought a 98 cobra that was already lowered and having some serious clearance issures. The springs in the front are eibach 3555-001 and I'm not sure if they are the correct springs for my car. I'm interested in putting either the ford performance b or c springs in. would this be a better option for my car?


    • Hey Dave, That eibach number seems to have been discontinued or a spring no longer available, so i do not necessarily know the spring rate or drop it gives. Usually Eibach is a more aggressive drop than Ford springs so if you are having clearance issues because the car is too low the Ford springs should remedy that for you by giving you a little extra space!


    Helpful (0)

    Will I need to buy a aftermarket caster camber plates for these springs?


    • The Ford Performance Lowering C-Springs will not require caster camber plates due to their small drop they offer.

      Rob D

    Helpful (0)

    With a set of 19 in rims and tires of 285/30 for front and 285/35 for rear...will these springs be able to fit?


    • You will be perfectly fine with the wheel and tire set up with these lowering springs. You should not have any clearance issues.


    Helpful (0)

    I just need a set for the rear, is it possible to get just the rear coil springs and insulators ? Thank you.


    • These springs are only sold in a kit of 4.


    Helpful (0)

    I just need a set for the rear, is it possible to get just the rear coil springs and insulators ? Thank you.


    • These springs are only sold in a kit of 4.


    Helpful (0)

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    Customer Reviews (93) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$100-$250

    • Handling Improvement 4.615385 4.6
    • Ride Quality 4.557693 4.6
    • Appearance 4.5 4.5
    • Bang For Your Buck 4.653846 4.7

    • 5/5

      June 29, 2010

      2002 mustang gt

      i just installed these on my 2002 mustang gt and it was easy to do. the back was easier than the front. all in all they look great and the car looks more aggressive now. thanks AM


      Year: 2002 Submodel: GT

      Helpful (13)

    • 5/5

      October 25, 2010

      2000 mustang gt ford lowering c springs

      ford racing lowering springs give your car better handling with the stiff suspension gets some taking use to but car has alot of better handling as far as lowering the car it drops roughly a inch and a quarter in the front and some where between three quarters to a inch in the rear give the car a classic muscle car look jst posted a image of my car just look for the black mustang with the name cali muscle car club to see if thats the look you want thanks American muscle for offering great products

      cali muscle

      Year: 2000 Submodel: GT

      Helpful (10)

    • 5/5

      June 12, 2010

      Ford Racing Springa

      I should have installed these on my 5.0 years ago. It really gave my car an aggressive stance. It dropped the front approximately 1.25" and the rear 1". This is an awesome look for all foxbody stangs without sacrificing the ride quality. American muscle is a true must save bookmark for all of your performance needs!

      Joe from NY

      Helpful (9)

    • 5/5

      July 26, 2010

      C springs

      Another awesome product from AM only too about 2hours total. Did them in my driveway on jackstands. If you want an aggressive stance and not a huge bill. These springs are the way to go

      Nick sheehy

      Helpful (8)

    • 2/5

      December 20, 2009

      not enuff drop

      I replaced the stock 189k mile springs/struts and shocks and did only saw a drop of about .5" total. I have done many spring installs on mustangs and other brands. Wishing now i had chose the eibach that i had used on a different stang before. These along with the struts and shocks do ride real nice but the drop was not there for me.


      Year: 1989

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      October 03, 2011

      Night and day

      They made a huge differance. handles better, luanches better and most of all that annoying squating that it would do at luanch is gone. it just snaps and goes. i would recommend motor and trans mounts also being that now it can luanch so hard the mounts cant handle it.


      Year: 2003 Submodel: GT oneonta, ny

      Helpful (5)

    • 4/5

      September 19, 2008

      2003 Mustang V6

      I installed the Ford C-Springs on my 2003 Mustang V6 convertible. It dropped the front by 1 inch and rear by .5 inches. The manufacturer indicates that these springs are designed for GT models & have not been tested on V6. It worked on my V6 very nicely, except it was .25 inches higher than the estimated drop. It made my Mustang look more beautiful and did not effect the ride quality at all!!!


      Year: 2003 Submodel: V6

      Helpful (5)

    • 4/5

      June 09, 2008

      Great product

      I have a red 96 GT, which should be in the customer pics for this product. I have 18x9s in front and 18x10s in the rear. It lowered the car quite well and the ride is also great. A highly recommended product.


      Year: 1996 Submodel: GT

      Helpful (5)

    • 5/5

      October 11, 2010

      Very Nice

      I had these installed on my 04 GT when I bought the car a year and a half ago. Popped the trunk on the dealer lot and boom they were sitting there along side some Tokico Shocks and Struts. You can tell a big difference between these and the stock ones. Sitting next to a stock 99-04 Mustang and even an 05-09 Mustang you tell can you sit lower. If you're looking for a lower stance the Eibachs are better. I've sat next to a guy with Eibachs on his Mustang and sits lower than mine These combined with the Tokico S&S makes for a real nice handling Mustang.


      Year: 2004 Submodel: GT

      Helpful (4)

    • 4/5

      July 18, 2016

      Better ride and stans no more 4x4!!

      I got this Ford Racing Lowering Springs like 3 months ago, they are really good, better ride and stans. The rear Springs are a bit bounce, I thought they were going to be a bit stiff but other thank that I like them.


      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      June 29, 2016

      Car rides much better!

      New springs feel great when riding/driving! Installation wasn't the easiest but it was worth it!


      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      March 18, 2016


      The lowering springs were so nice and super easy to put on. No need to go to any place. Anyone with the right tools can get it done easily.


      Year: 2000 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      May 14, 2015


      Rides great and the unbelievable of how much they improved the handling.


      Year: 1990 Submodel: Other BASTROP,TX.

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      September 29, 2011

      Offers a Much Better Stance!

      These springs are great. They get rid of the 4x4 look and give my Mustang a better better stance. Seemed to help the handling as well. Great look and ride for those not looking to slam their pony with aggressive lowering springs, these are just right. Allows me to easily fit the larger wheels on the back too.



      Year: 2003 Submodel: GT Wayne, PA

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      May 20, 2016

      Geat product

      Went with these springs was an easy install about an hour with a friend helpng easy install the end result was the perfect height and man the handling is night and day from the stock springs


      Year: 2003 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      April 13, 2016

      Great lowering spring

      I ordered these for my 2004 GT. I was looking for a little more aggressive look, but didn't want to slam it. The Ford Racing lowering C-springs are the same factory spring that was equipped on the 2003-2004 Mach 1. Or so I've read. Install was pretty easy, and I was able to do it in my garage with basic hand tools, and a floor jack, with jack stands. Total install time took about 4 hrs. Ride quality is OEM. Not any different from the factory springs IMO. After it settles I'm looking at about an inch of drop on all for corners. And that's with isolators installed on all four corners too.


      Year: 2004 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      August 19, 2015

      Ford Racing lowering C-springs

      I was running the original 1986 v6 springs and going from that to this was a huge difference. The car sits about like the description said, the car can actually take a turn with some speed now. Ride quality is stiff but not bad on your body. Probably the best thing I have bought for my mustang. Would recommend it to anyone daily driving a fox body but likes to have some fun too.


      Year: 1986 Submodel: V6 Gastonia, NC

      Helpful (2)

    • 4/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      June 27, 2016

      Lowering springs

      Had my garage install. Car dropped 1inch . Looks good. Does not scrape. Very satisfied. Ride is about same as stock.


      Year: 1999 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 26, 2016

      2002 mustang gt convertible

      Took about 1 1/2 hours. Didn't install isolators and the car still rides smooth. Definitely buying these again when I come across another stang.


      Year: 2002 Submodel: GT maywood, CA

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      November 03, 2015

      Great stance

      Gave the look I wanted, not to low. Just enough to fill in fender to tire gap


      Year: 2001 Submodel: GT Pittsburgh

      Helpful (1)

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