Strut Tower Brace

1hot87gt

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Mar 17, 2017
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Getting ready to have a Vortech V3 installed on my 87 GT. I have a BBK strut tower brace that I’ve had installed for years that I am gonna have to take off because it won’t clear supercharger pipe to throttle body. My question is do I replace it or is it really not worth it to do so? I know Maximum Motorsports make one that will clear the supercharger setup but I see so many cars, supercharged and not, without a strut brace that it makes me wonder if I’m wasting my money.
 
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stanglx2002

CT Material here
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The strut towr brace is designed for cornering mainly, so if you are just street cruising the car you will not notice a difference.
 

stormsedge

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Jun 17, 2018
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I like the braces I put in my convertible, but I'm a blast through the twisties guy. A local welding shop may be able to change up your existing brace cheaper than buying another...worth looking into.
 

Mustang5L5

i'm familiar with penetration
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Was a pretty good thread on CC where Jack from MM chimed in and commenting that it really does nothing for cornering and comes into play mostly during hard braking. At that time, the shock towers tend to flex towards the rear of the car and that movement creates small changes in vehicle alignment. The biggest benefit is in road racing where you need to brake hard, and maintain your alignment specs to maneuver properly. Short of that, it really does nothing for handling/braking that you'd notice on a street driven car.

In terms of vehicle harmonics, it might change something, after all these are 25-35+ year old cars that can be pretty loose. I recently installed a rear shock brace that did nothing for handling but did eliminate some rattles from the rear hatch area. Having the rear hit bumps and have it be quieter was well worth the install of the brace. I plan on installing a front STB from MM to try and duplicate that result up front as well.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
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It really comes into play with convertibles, they tend to develop a cowel shake when taking bumps, it may help in a collision but I have not seen any proof.
 

Fast Ronald

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I may install sub frame connectors of my own design on my Convertible and a design and build my own rear shock tower brace....have the front brace.....looking to keep the cars strength up...the ride may be firmer...but flex reduction is my goal
 

Ryuk

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Apr 22, 2017
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There's a lengthy thread over at VMF with a debate over straight vs curved Monte Carlo bars if you really want to do a deep dive.
 

TOOLOW91

If you're the village idiot what's that make me?
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I may install sub frame connectors of my own design on my Convertible and a design and build my own rear shock tower brace....have the front brace.....looking to keep the cars strength up...the ride may be firmer...but flex reduction is my goal
Don’t have to re invent the wheel . Through the floor subframe connectors will achieve what you want .
 

LILCBRA

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Vintage Mustang Forums. I've seen some articles or postings there through Google searches.

 
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Ryuk

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General karthief

wonder how much it would cost to ship you a pair
Mod Dude
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Are you comparing 60's-70's metal technology to 90's tech?
The body design tech of the 90's is far past the 60's-70's stuff.
In reality you will notice far less cowl (windshield/dash) shake with a strut tower brace of any type, the only deflection you will see would be in an impact, mostly side impacts.
 

Ryuk

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Apr 22, 2017
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Are you comparing 60's-70's metal technology to 90's tech?
The body design tech of the 90's is far past the 60's-70's stuff.
In reality you will notice far less cowl (windshield/dash) shake with a strut tower brace of any type, the only deflection you will see would be in an impact, mostly side impacts.
Not at all. I'm just pointing out the discussion about how much strength each option brings to the equation. It's something to think about when considering tubig size/diameter and the like.

But are you forgetting that the fox body actually is 70's technology?
 
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KRUISR

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design and build my own rear shock tower brace.
Where shocks in the rear of a 79-04 connect has no structural significance, unless you have coil-over shocks mounted there. The towers basically just hold the top of the shock. Really not a lot of stress on them unless you are playing out Duke of Hazzard fantasies. With a stock setup, a brace for them will be cosmetic only. The place to reinforce in the rear is the upper and lower control arm mounting points to the chassis.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
Aug 25, 2016
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Where shocks in the rear of a 79-04 connect has no structural significance, unless you have coil-over shocks mounted there. The towers basically just hold the top of the shock. Really not a lot of stress on them unless you are playing out Duke of Hazzard fantasies. With a stock setup, a brace for them will be cosmetic only. The place to reinforce in the rear is the upper and lower control arm mounting points to the chassis.
I disagree with the no structural significance, I would say not a lot of structural significance, it is a unit body, adding that brace ties the wheel wells together higher up in the structure, granted it will be marginal but some is better than none.
 

Fast Ronald

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There are opinions plus or minus regarding rear shock tower braces.............I may begin building an adjustable brace due to differences in various years for the Fox body. Have been told for distances of 37" to 38 1/2" being a unibody car.to my mind any additional strength is a plus.
 
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KRUISR

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I would say not a lot of structural significance, it is a unit body, adding that brace ties the wheel wells together higher up in the structure, granted it will be marginal but some is better than none.
If all you want is general unibody strengthening, take a 1x2 steel tube (left over from what you buy for your home build subframe connectors - that's what I did), lay it on the floor pan between the wheel wells and weld it down. Better yet, put it under the floor and weld in place from underneath.

Rear shock tower braces I have seen pics of would be off the floor pan and connect the raised shock towers. To me, not much structural upgrade. Laying flat on floor and stitch or fully welded to floor, that is a different story.
 

General karthief

wonder how much it would cost to ship you a pair
Mod Dude
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I'm not getting into trying to explain why that would only add to the floor structure, and why a brace higher in the body would add rigidity, above my structural building knowledge.
 
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