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Eibach Pro-Kit Springs (94-04 GT Convertible)

Market Price $294.30 You Save 10% ($29.43)
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  • Item 47508
  • MPN# 3530.140

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Features & Details

  • Classic Muscular Stance
  • Improves Handling
  • Lowers Center of Gravity
  • Progressive Spring Rate
  • Estimated Drop: Front - 1.3”, Rear - 1.4”
  • Fits 1994-2004 GT Convertible
  • Clears Stock and Aftermarket Wheels & Tires.
Performance Handling. These Eibach Pro-Kit Progressive Rate Springs will lower your Mustang's center of gravity, reducing body roll in the turns, squat during acceleration, and excessive nose-dive under hard braking. A set of Eibach Springs are great for daily driving, street, and even track use.

Classic Muscular Stance. Not only does a set of Eibach Pro Kit Springs improve the handling performance of your Mustang, but they also improve it's overall appearance by lowering the ride height approximately 1.3" in the front and 1.4" in the rear to eliminate the huge tire to fender gap, for a classic muscular stance.

Progressive Design. Eibach's proprietary progressive spring design provides the ultimate balance to deliver aggressive good looks and high performance handling, without ever compromising safety or ride quality.

Recommended Upgrade. When installing new springs you should also replace your old worn out rubber Spring Isolators with a new set of Polyurethane Spring Isolators, see drop down option above.

Clears Stock and Aftermarket Wheels & Tires. These lowering springs were engineered to be compatible with your factory 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. This set of four Eibach Pro Springs are specifically designed for use on 1994 to 2004 convertible GT Mustangs only. Not for use on coupes.

Fitment: 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (4) Lowering Springs
  • (1) Snubber
Installation Info
Tech Specs
Springs Specifications
Spring Rate: Front: 502-570 lb/in.
Rear: 171-314 lb/in.
Usage: Street
Year: 1994-2004 Model: 94-04 GT Convertible
Progressive or Standard: Progressive Estimated Drop:

1.3"F / 1.4" R

Will it fit my Mustang?
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

Fits Convertible Only

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Most Helpful Reviews

Eibach Springs Pro Kit

Not satisfied with the product at all. Don't know if the wrong springs were put in the box at the factory or what, but only lowered my 99 convertible GT 3/4 of an inch.

Helpful (8)

Nice Improvement

00 GT Vert Improved ride quality over stock springs, much softer ride. Initial lowering was around 3/4" front and rear. After a few rides the front settled in at 1 3/8" and the rear height varies between ...

Read More
Helpful (5)

Overall Rating 3.9 out of 5 stars
Read All 25 Reviews

Customer Photos (11) Submit Your Photo

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5 Questions / 13 Answers

Ask a Question

will these work with the staggered wheel and tires? I bought the staggered wheel and tire combo from you and want to know if I can use these springs? Also my car is an 01 GT convertible.


  • Definitely! You can use standard or staggered wheel and tires with this Pro-Kit. Our Wheel/Tire Packages fit without clearance or rubbing issues up to a 2" drop - this kit drops approximately 1.3” in the front and 1.4” in the rear. You won't have any problems!


Show 3 more answers Helpful (1)

I have long-tube Headers on my 04 GT and I'm concerned this will drop it to far. My wheels and tires are both stock but my current ride height I am unaware of. I'm told it was lowered (springs) and I have not had any problems so far aside from needing to replace them due to age. If you were to put these springs on a stock suspension would it endanger the long-tube headers / cats?


  • The Eibach pro-kit lowering springs will have enough clearance for your headers. However going over big bumps in the road or potholes I would be careful when going over.


Helpful (0)

Bump Steer 2000 Muastang GT Convertible Will a Bump Steer Kit be requied if installing Eicbach Pro-Kit Springs


  • It ceratinly wouldn't hurt anything but i have installed the pro kit on 2 of my mustangs now and never had an issue. The prokit is a pretty mild lowering kit; your not "slamming" it if you will.


Helpful (0)

Will these gt springs lower my v6 mustang Will these gt springs lower my v6 mustang


  • American Muscle has an Eibach Pro-kit for V6 Mustangs, it's labeled "Eibach Pro-Kit Springs (79-04 V8 Coupe; 99-04 V6 Convertible; Excludes 99-04 Cobra)" It is a different one than the one you mention here. Just to let you know, lowering a Mustang 1.5 inches more than likely will cause geometry changes in the suspension. I suggest you do more research on the internet about Mustang suspension. Look up caster camber plates and matching up struts/shocks to spring rates. This kit is a good starting point, but you may need to upgrade some other parts to get it right., Hope this helps


Show 2 more answers Helpful (0)

How necessary are caster camber plates? If I were to get these springs, how necessary would it be that I also get replacement caster camber plates?


  • General rule of thumb - any time you lower your car over 1 inch (which these springs do), you'll want caster camber plates to obtain proper alignment. If the geometry of your suspension can't be adjusted within stock specs, it can result in premature tire wear and poor handling. Stock suspension tends to lack enough adjustment to compensate for the new drop. Hope this helps!


Show 3 more answers Helpful (0)

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Customer Reviews (25) Write a Review

Overall Rating 3.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Handling Improvement 4.076923 4.1
  • Ride Quality 4.153846 4.2
  • Appearance 4.076923 4.1
  • Bang For Your Buck 3.538461 3.5

  • 2/5

    May 23, 2010

    Eibach Springs Pro Kit

    Not satisfied with the product at all. Don't know if the wrong springs were put in the box at the factory or what, but only lowered my 99 convertible GT 3/4 of an inch.

    T Kraft

    Year: 1999 Submodel: GT

    Helpful (8)

  • 4/5

    July 24, 2010

    nice and low

    00 GT Vert- Overall the springs gave a nice drop. I paired them with Eibachs prodamper kit and they ride nice. New Caster camber plates a must for new drop. Bumpsteer kit alos helped greatly. The ride is by no means soft though, although nose dive and body roll are almost non existent.


    Helpful (5)

  • 5/5

    June 27, 2010

    Nice Improvement

    00 GT Vert Improved ride quality over stock springs, much softer ride. Initial lowering was around 3/4" front and rear. After a few rides the front settled in at 1 3/8" and the rear height varies between 1" - 1 1/2" depending on the level of the fuel tank. Was able to adjust the camber with camber bolts.


    Helpful (5)

  • 4/5

    June 21, 2010

    Eibach ProKit

    02 GT Convt -- I like the ride quality, about as soft as stock springs for light loading (small bumps) and firms up quick for heavier loading (bridge to road drop transistions). It was no where near the 1.3" lower in the front, more like .75". And same for the rear, no where near 1.4", more like 1".


    Year: 2002 Submodel: GT

    Helpful (4)

  • 3/5

    June 20, 2010

    Lowering springs

    I have to agree somewhat with T Kraft with this one. Although I think they lowered my car to a nice level and I think the car looks much nicer, I think they could have lowered the car a little more. Overall I am happy with them.


    Helpful (4)

  • 5/5

    July 26, 2011

    Real tight

    I matched these springs with the eibach pro-damper kit. This set-up will keep you real tight around turns... if your used to the stock ride be careful! Don't be afraid of this making you to low, this makes it look nice and american mean, not imported curb scraper


    Year: 1994 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 07, 2017


    I think this was the perfect choice made my 95 GT Vert look the way it should, first day it looked about half inch but buy the 3rd day it was 1.5 all around, while keeping a great ride quality. I love it and could not be happier with my choice on this product


    Year: 1995 Submodel: GT

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    March 08, 2016

    Installed looks and rides great

    Very easy to install took about 4 hours ride is great, lowered some but have not driven it more then 20 miles Hopefully it will settle and lower a little more


    Year: 1997 Submodel: GT

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    October 13, 2015

    Solid but did not lower!

    Just installed these over the weekend, with some Bilstein HD Series struts and shocks. Feels solid, nose no longer dives when braking, great cornering! Big disappointment, only lowered the rear by 3/4 inch and raised the front by 1/4 inch. Also installed the Maximum Motorsport Caster Camber plates and new set on SR Polyurethane front and rear Isolators. Hoping that the front will settle in a week! If not, ??? do not know what to do?? Stock GT Convertible with 17" rims, and stock 245/45R17.


    Year: 2004 Submodel: GT Victoria, BC. Canada

    Helpful (2)

  • 2/5

    Installation Time: Afternoon

    July 03, 2013

    lowering springs

    did not lower car as much as advertised and ride suffered more then I expected for so little of drop in ride height that I recieved


    Year: 1999 Submodel: GT

    Helpful (2)

    • Response from AmericanMuscle

      It can take a few weeks for the springs to fully settle to their complete drop. I've installed Pro-Kit Springs on my car as well and while I saw a difference after installation, I didn't see the full drop for about a month. Hope this helps!

      Lisa , Customer Care

  • 2/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    March 03, 2017


    The ride quality is the best characteristic these springs have but this is partly due to the bilstein shocks/struts which were put on the car at the same time. The handling is solid and predictable even with the stock sway bars. Now the drop??? These springs did not lower my car. When the car came down off the lift and a measurement taken from the wheel well to the ground the ride height was the same as it was before the install. For me there is no bang for the buck if lowering springs do not lower.


    Year: 1999 Submodel: GT

    Helpful (1)

  • 3/5

    July 18, 2016

    Good quality but wishing for more

    Had the springs install on my 03 GT vert professionally when I was getting the Koni shocks and struts done. Added the caster/caber plates too. The description reads 1.5 drop, but looks like the car still sits high. I was limited in my options since I have a convertible.


    Year: 2003 Submodel: GT

    Helpful (1)

  • 2/5

    Installation Time: Afternoon

    November 25, 2014

    Lowering springs that don't really lower

    Springs have been in for three weeks. The reason I bought the springs was to lower the car. I checked before and after with a tape measure no drop. I have been checking every couple days and there is no change, except there is now a creaking sound. The springs were easy to install on a lift with proper compressor. The isolators were tricky to get off the old spring, but very possible if ur careful. Thant being said the car handles better, but not lowered. I am very experienced and installed the springs properly. If you wanna drop the height of your car don't buy these.


    Year: 2000 Submodel: GT CT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 05, 2013

    Impressed by the improved ride quality

    The lowering turned out to be in the advertised range but I was really impressed with the improvement in ride quality. The handling seems better, I have new Nittos and the staggered wheels now, but ride is smooth until I don't want it to be. The lowering makes the car look right.


    Year: 2004 Submodel: GT Ottawa, Ontario, Canada

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    October 22, 2012

    eibach pro kit

    easy install if you have access to a lift. Improved look and feel of car. clears 20 inch rims with no problem.


    Year: 2002 Submodel: GT Riverside, CA, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    August 09, 2012

    I LOVE these springs!!!

    These should stock! I hated the 4 inch wheel gap i had on my 96 gt coupe and these springs did lower the car 1.5" inches all around, i measured. Installation was easy just watched youtube videos. Do it yourself. Save money. I just did 120 on the freeway and takes turns amazingly. Doesnt lean at all compared to stock. So much more control. Ride quality is even better than stock. Feel soft on streets, takes turns like a dream These springs gave me a great stance and im so glad i decided to buy them. Bought some 1.5" wheel spacers for the back to get rid of the tucked in wheels. Now my car looks mean. Thanks AM!


    Year: 1996 Submodel: GT California

    Helpful (1)

  • 4/5

    Installation Time: Weekend

    May 23, 2012


    We had alot of trouble with this install. Mainly because the bolt that goes thru the bottom part of the control arm got stuck. Apparently this is a common problem. The other side came out JUST FINE> but my drivers side gave us trouble. Alot of peoples' solution is to torch out the rubber around it and just buy a new piece. That was my last resort but we ended up removing the whole control arm, beating out the old one, and purchasing a new rubber fitting. ($30@dealer) After that the whole installation was done in 10 min(the rear) Overall, great product. This is my second ProKit purchase. I put this kit on my 01 Cobra, and my 03 GT. Really able to get around corners but still keep a smooth ride quality. Great product!


    Year: 2003 Submodel: GT Waldorf, MD, USA

    Helpful (1)

  • 5/5

    May 12, 2011


    Got these for my 99 vert with front/rear iso's.Paired them with Eibach Pro Dampers with MM Caster/Camber Plates & Competition Engineering Bumpsteer Kit! All I can say is WOW! Ride is smooth and handling is great for my daily driver! AM hooked me up with free shipping and they were at my door in 2 days! Installation was easy with all the included instructions according to my mechanic! CUSTOMER SERVICE IS TOP NOTCH TO! THANKS AM!!! YOU GUYS ROCK!!!


    Year: 1999 Submodel: GT

    Helpful (1)

  • 4/5

    December 06, 2007

    Eibach Springs

    I like love the ride quality of the springs but wish they would have lowered the car a bit more. Overall I am very satisfied with the product

    Mark Massirio

    Helpful (1)

  • 5/5

    September 28, 2007

    Pro Kit

    Eibach makes the best springs period. While their product cost more money then other brands, they are worth every penny. The best ride quality, the best handling, and they look good too.

    Greg Mannikus

    Helpful (1)

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