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Ford Performance Lowering G-Springs (79-04 Convertible, Excluding 99-04 Cobra)

Item 101544
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Aggressive Stance
      • Lowers Center of Gravity
      • Improves Handling
      • Progressive Spring Rate
      • Estimated Drop: Front 1.2"; Rear 1.2"
      • Fits 1979 to 2004 Convertible Mustangs, Excludes IRS Models
      • Clears Stock and Aftermarket Wheels & Tires.


      Improves Handling. These Ford Racing "G" Springs will lower your convertible Mustang approximately 1.2" 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 Ford Racing 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 G Springs will fit all convertible Mustangs from 1979 to 2004, except the 1999-2004 Cobra's with Independent Rear Suspension (IRS). Lowers approximately 1.2" front; 1.2" rear.

      Spring Rates:

      • Front: 500/570 lb/in.
      • Rear: 170/310 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

      MPN# M-5300-G

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (15)

      Write a Review

      Ratings Summary

      4.5 out of 5 overall rating from 15 customers

      Installation Time: Full Day

      Installation Cost: $100-$250

      • February 29, 2020

        5 2000 GT - B12jrod Installation Time: Afternoon

        Amazing product

        These are the Eibach springs, and when you add good shocks and struts the ride quality is drastically improved along with the handling.

        Helpful (0)
      • January 09, 2020

        3 2003 GT - GaryS Installation Time: Shop Install Installation Cost: $100-$250

        Springs lowering

        Well, the rear end was lowered approximately 1 inch, looks good and i like. The front however was only lowered slightly. I determined the front spring was not cut as much as the rear, probably like only a quarter of the rear. Hoping after time it may drop slightly more.

        Helpful (1)
      • May 15, 2019

        5 1991 GT - td22904 Installation Time: Full Day

        Looks and rides awesome!

        Nice fit, looks great, rides way better than expected! Made specifically for the Fox body convertible, these springs look great and ride even better. Go with Ford Performance if you want the best.

        Helpful (1)
      • June 30, 2018

        5 2004 GT - JerryK Installation Time: Afternoon

        2004 mustang GT convertible-sonic blue

        These springs are very nice if your looking for a mild drop and better handling. They are made by eibach. The car has the perfect stance I was looking for. Ride quality is excellent. The staff at American muscle have advised me well. Two thumbs up

        Helpful (35)
      • June 18, 2018

        5 1992 GT - JarettP Installation Time: Afternoon

        Huge improvement

        was on 1992 springs........dropped more in rear than front however front will probly settle a bit. ride is nice and firm but not too firm . installed with eibach pro dampers?

        Helpful (9)
      • June 08, 2018

        4 1994 GT - joebrez Installation Time: Afternoon

        Lower than Expected, but worth it.

        I'm glad I went with these springs. It is rated at 1.2" drop, I think that's what I saw in the Front, however the back is closer to 2". Ride is nice and compliant. Handling is much sharper. I used SR's Poly Isolators front and rear. Shocks were new (last year) Monroe Senso-matics (think that's the model). Probably will go with KYB GR-2/Excel or KONI Orange when these wear out.

        Helpful (8)
      • May 16, 2018

        5 2003 V6 - RobR Installation Time: Shop Install

        low rider

        for the money the springs are great install was a breeze by shop. they are breaking in nicely rides like new car looks great lowered approximately 1.5 " height is perfect now. it totally eliminated all that blank space above very happy with these

        Helpful (8)
      • November 22, 2017

        5 1996 Cobra - MarkB Installation Time: Full Day

        The Correct Spring for a Convertible

        If you have a convertible, this is the spring set for you - stay away from the others that don't specify "for convertibles" as they will dump the front end in the dirt. Great lowered stance, the way it should have come from the factory. Vastly improved ride quality and handling, but most of all fixes the 4x4 suspension look.

        Helpful (21)
      • February 16, 2017

        4 1995 GT - splogan Installation Time: Afternoon

        Good allaround springs

        I took off a set of racing springs that handled like I was on rails, unfortunately it was rattling my interior apart. These are stiffer than stock but still have a good ride. We had to install the fronts 2 times because the car looked like a 4x4 still after we took it off the stands. We pulled it all apart and took out the top isolators. This made them look much better. We left them out in the rear to keep the measurements consistent. These make the car level so the tail drops more. The front looks perfect, but I think the rear isolators will get put back in when we do the gear swap. It looks just a touch too low. I docked them a star for having to remove my front isolator to look like a lowered front. After a couple days of settling it looks great. They come in the red Eibach box so you do the math what they really are. Overall I am happy with them.

        Helpful (21)
      • February 19, 2016

        5 2000 GT - Joey Installation Time: Afternoon


        Great product and super quick shipping! Thanks American Muscle for helping keep the passion alive!

        Helpful (12)

      Questions & Answers (4 answers)

      4 Top Rated Questions

      will I have to replace the Castor Camber plates when installing these springs?

      • Caster camber plates are recommended for anything over a 1 inch drop. While they're not essential for a good alignment with a 1.2 inch drop, they are definitely necessary for a 'perfect' alignment.

      Helpful (3)

      will these springs fit a 2003 mach 1?

      • The Ford Racing Lowering G-Springs - Convertible (79-04 GT, V6; 93-98 Cobra) will not fit a 2003 Mach 1. If you are looking for Ford Racing lowering springs that would work, I recommend the Ford Racing Lowering B-Springs - Coupe & Convertible (79-04 GT, V6, Mach 1; 93-98 Cobra) item #50151 (

      Helpful (2)

      What makes these springs only compatible with convertible Mustangs? The only difference I can see between these and the "B" springs are that the front and back drop an equal amount on these, whereas the "B" springs drop the front more.

      • Convertibles are actually a bit heavier than coups, so because of this, there are often springs that rated specifically for one or the other. Technically, you could put these springs under your mustang, however it won't quite drop as low as advertised, and it will be a much stiffer ride than the designed intention. For this reason I would suggest finding a spring specifically rated for a coup.

      Helpful (2)

      Will I need to replace anything if I was going to put this on a 1995 Mustang GT Convertible with everything stock suspension wise? I heard you need to put new Camber bolts and Isolators and thats it for it to be good.

      • When installing the Ford Performance Lowering G-Springs we recommend installing new spring isolators be installed. Camber bolts are not required, but will make it easier to get the alignment back into spec.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (4) Lowering Springs

      Tech Specs

      Springs Specifications
      Spring Rate:Front: 500/570 lb/in.
      Rear: 170/310 lb/in.
      Year:1979-2004Model:All convertible except IRS Cobra's
      Progressive or Standard:ProgressiveEstimated Drop:1979-2004: 1.2"F / 1.2" R

      Will It Fit My Mustang

      • Cobra - 94, 95, 96, 97, 98
      • 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
      • Other - 79, 80, 81, 82, 83, 84, 85, 86
      • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

      Fits convertible models only.

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