Steeda Mustang Full Length Subframe Connectors - Powdercoated (1979-2004)

12 Review(s)
$21.00 (9%)
Whether you Mustang only gets driven to the grocery store or driven hard on the road course or drag strip, every 79-04 Mustang needs subframe connectors!
EST Ship Date 06-08-2021
Part Number: 555 5246
If Anderson Composites product is delivered defective or damaged, you must notify Steeda within 24 hours of delivery.

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Whether you Mustang only gets driven to the grocery store or driven hard on the road course or drag strip, every 79-04 Mustang needs subframe connectors!

Steeda's full length subframe connectors are the best full length subframe connectors available for your 1979-2004 Mustang. Perfect for daily drivers, or serious cars with high horsepower, sticky tires or competition suspension.

Not only will Steeda full length subframe connectors provide unmatched strength, but will save you time in installation over other brands!

Steeda starts with beefy 1.5 x 2 x. 083 square tubing that spans the full length of the floor pan providing unmatched chassis rigidity, improved handling, and improved ride quality with reduced impact harshness.

Our full length subframes are reinforced at each bend and include Steeda's exclusive torque box reinforcing plate for the strongest attachment possible to the rear subframe for maximum effectiveness.

Steeda Full length subframe connectors also feature a one-piece reinforced seat bolt cross brace. Some subframe cross braces have 8 individual gussets which must be carefully positioned and welded on. Other other kits use no reinforcements at all in their cross braces. Steeda's cross braces have reinforcing gussets built-in, for greater strength with less welding.

Other full length subframe connector designs do not attach all the mounting point plates to the connector, leaving you to weld them during installation adding time and complexity. Steeda full length subframe connectors come with all mounting point tabs pre-welded to the subframe connector. Another Steeda exclusive.

Full-length subframe connectors are available in bare steel or black powdercoated finishes. The black powdercoat can be scraped and welded over, and then only the weld joints need to be spray-painted vs. the whole kit needing to be spray-painted.

Note: 1996-98 Mustang Cobras will require modifications to the transmission crossmember mounting points. Will fit convertible models as well as hatchback and notchback coupe. Call our sales reps for details.

Product Benefits
  • Dramatically reduce chassis flex
  • Reduces impact harshness
  • The strongest subframe connectors available on the market
  • Available powdercoated or bare

CA Residents: Cancer and Reproductive Harm WARNING

Fitment & Features


Manufacturer: Steeda Autosports
Made in USA: Yes

Installation Information:

Level of Difficulty: Difficult
Install Time: About 3 1/2 Hours
Tools Required: Basic Shop Tools
Print Instructions: Installation Instructions

Vehicle Fitment:

Fits Model Year: 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

Customer Reviews

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Average Customer Ratings


Great product, It did take a while for product to arrive though
Did you find this helpful? 
from Astoria on 3/29/2021
Big difference
I had it installed by pro welder Austin's ProMax in Tacoma. I purchased them black painted and they spray painted over their welds. Great job. Incredible ride but I also installed the basic suspension package and I must say my 94 v6 really rides great. Firm ride but still overall smooth. They sent me Koni street struts and shocks and I'm glad thanks Steeda.
Did you find this helpful?  4 of 5 Found Helpful
Verified Buyer   from Washington on 7/16/2019
Great product! A MUST HAVE. these were put on a 2003 mustang convertible. this car came from the factory with a short and flimsy connector that was removed to put these SOLID FULL length connectors on and instantly i could feel the difference!! My installer gives this product an A+ too!! he said the fit was far better than other kits that he has installed. install time including factory removal was 2.5 hrs. thanks steeda!!!
Did you find this helpful?  2 of 3 Found Helpful
from Florida on 3/28/2015
Must for any mustang owner
This is a great product and a must for any mustang owner. Feels like a different car after install. Will be doing the strut tower brace next. Make sure you use a drive on lift when you weld these bad boys on.
Did you find this helpful?  4 of 4 Found Helpful
from Texas on 12/3/2014
Big difference
Definitely exceeded my expectations, make this one of your first mods. Thanks Steeda.
Did you find this helpful?  1 of 1 Found Helpful
from Texas on 5/14/2014
Noticed difference
Best upgrade I have done to my car yet. As soon as I got in my Mach it felt like a different car. Car was stiff and I didn't think I would notice but when cornering is were you feel it the most.Will buy Steeda again.
Did you find this helpful?  1 of 1 Found Helpful
from Oklahoma on 9/17/2013
Do This First!
I just installed these on my '93 LX Hatch. I had previously added 17 wheels, stiffer springs, urethane bushings and camber/caster plates. Each mod made the ride a bit more harsh and noisy, now I know why. The body was flexing more because of the stiffened suspension. The Steeda sub-frame connectors changed that immediately! Floor pan flex is eliminated. No more rocking chair effect. It's noticeable in clutch and shifter action. My clutch leg and shifting arm were actually flexing the floor pan! Ride has improved now that the suspension is doing the work. PS: Buy them painted. I spent more than the difference in cost on quality rattle can primer and paint.
Did you find this helpful?  6 of 6 Found Helpful
from Texas on 1/10/2013
You need these!!
This was the last installed part on my 04 Mach 1. perfect fit and I could really feel the difference. Car is very stiff and allows the suspension to work properly by elimintaing the body flex.
Did you find this helpful?  2 of 2 Found Helpful
from Florida on 8/19/2012
Excellent Product for Stiffening!
I used this on my 88 Mustang LX build. It really helped stiffen the frame together. Since Fox's and sn95's all have incomplete frame rails Steeda's subframe connectors are an excellent solution. I would recommend it as one of the most important first bolt-on upgrades! It assists with traction, handling, and braking!
Did you find this helpful?  1 of 1 Found Helpful
from Florida on 2/25/2012
A Must Have
These subframe connectors made a huge difference on the way my 02 mustang handled. Ride felt much more straight when flooring it. I was skeptical when I bought them thinking they would not make that much of a difference but after putting them on which was a perfect fit these made a huge difference highly recommended
Did you find this helpful?  1 of 1 Found Helpful
from South Carolina on 4/27/2011
Single best upgrade on my '90 hatch
I got these a while ago, the ones I have are the full length chromoly connectors with seat braces, we welded them up on my '90 5.0L hatch, and the difference was night and day. The car rides smoother, handles much better, and even seems to accelerate better off the line. They are by far the single best mod I have made to date, and I would recommend them to anybody who owns an old flexy fox body.
Did you find this helpful?  1 of 1 Found Helpful
from Georgia on 3/14/2011
Great product
this is a very important modification on a mustang. Made the car ride alot better and not twist. At first I ordered s&w but they didn't fit. Went back to the speedshop and they ordered me these and I can't be happier. A high quality product.
Did you find this helpful?  2 of 2 Found Helpful
from Florida on 2/17/2011
There are no reviews for this product!

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