[Zatrekaz]

Ever since I installed my 18"s my car's suspension has been very shakey and very rough. I get alignments and balancing and nothing stops. I am starting to think the cause of this is simply the rims adding weight and the low profile tires. Therefore, I want to add some suspension upgrades before I lower it and cause even more roughness. Here is what I am look at:

Steeda Strut Tower Brace (99-04 GT/V6) at AmericanMuscle.com - Free Shipping!
Steeda Rear Shock Tower Brace (79-04) at AmericanMuscle.com - Free Shipping!
Mustang Full Length Subframe Connectors (79-04) at AmericanMuscle.com - Free Shipping!
Eibach Anti-Roll Kit (94-04 excluding the 99-04 Cobra) at AmericanMuscle.com - Free Shipping!

I would prolly do the Steeda Front and Rear Strut Tower brace first, followed by the Subframe connectors, followed by the Anti-Roll kit.

How does this setup look? Anything I should add in there or change to add some stiffness and better ride quality?

I know the Sub-Frame Connectors have to be welded. Are the rest able to be installed by me with normal tools?

[Mattman]

Setup looks great. Are you confident in drilling the holes to mount the Steeda Strut Tower Brace on your own?

[Zatrekaz]

Did not look that hard. Only thing that concerns me on that aspect are the holes at the firewall. Im wondering how I would get to the other side to tighten the nuts. You think these parts will help some with the vibration I am feeling in the car?

[Zatrekaz]

I see for the rear shock tower it says "Some welding required". So the Sub-Frame connectors and the Rear Shock Tower Brace need to be welded?

[Mattman]

Originally Posted by Zatrekaz I see for the rear shock tower it says "Some welding required". So the Sub-Frame connectors and the Rear Shock Tower Brace need to be welded?

Yeah i'm afraid that you're going to have to do some welding for both of those. As for it fixing the vibration problem, i honestly could not tell you

[Zatrekaz]

Originally Posted by Mattman Yeah i'm afraid that you're going to have to do some welding for both of those. As for it fixing the vibration problem, i honestly could not tell you

On the install instructions it has nothing about welding the front. Simple bolting. Has pics, list of tools, everything. I see nothing about welding

[Mattman]

Sorry, i should have been more specific, On the rear strut tower brace and sub frame connectors it requires welding

[Zatrekaz]

Originally Posted by Mattman Sorry, i should have been more specific, On the rear strut tower brace and sub frame connectors it requires welding

Ahh ok. Anyone else have any insight on this? I am beggining to think that the problem is with my rims, so I know doing these upgrades will not solve the problem, just make it more torrerable.

I think I am going to slap on my stock rims/tires and see if it changes the vibrations. That way I can tell if it's my car or my rims. I know a bit of the ride quality goes down with the low profile tires, but dang... it's alot Lol

[willis6er]

im not positive but i think the bigger rims are what is causing the vibrations. you have more surface area touching the ground and you can feel it more, especially with the low profile tires. try putting some mid size tires on and see if that helps.

[Redux]

Oh man this make me confident in the $1300 I spent on new 18's wrapped in falcons.... They come in on Thursday so we will see I guess....

[Zatrekaz]

Originally Posted by willis6er im not positive but i think the bigger rims are what is causing the vibrations. you have more surface area touching the ground and you can feel it more, especially with the low profile tires. try putting some mid size tires on and see if that helps.

Bigger tires would lift it some no? It already looks like a 4x4. I will look at what size tires I have tonight. I am thinking adding the products I listed above will help with the ride quality.

I think the Anti-Roll kit and the Tower connectors will help the most, followed by the subframe connectors. Gonna contact a local suspension shop about how much they would want to weld the rear strut bar and the Subframe connectors.

[willis6er]

those probably will help some. you might want to look into some better suspension products like sport springs and shocks.

[Mattman]

Yeah this is making me not want to get rims now. I do have eibach pro-kit springs, so i hope that will help

[Toph6888]

Originally Posted by Zatrekaz Bigger tires would lift it some no? It already looks like a 4x4. I will look at what size tires I have tonight. I am thinking adding the products I listed above will help with the ride quality. I think the Anti-Roll kit and the Tower connectors will help the most, followed by the subframe connectors. Gonna contact a local suspension shop about how much they would want to weld the rear strut bar and the Subframe connectors.

Bigger tires wont necissarily raise the car, you have to look at the overall diameter of the wheel plus tire, so if you have an 18 inch rim, and go with a large profile tire, it will raise it, but if you go with a big rim, and a low profile tire, you can be the same height as stock or lower depending on the profile

[Zatrekaz]

I currently have 265/35 ZR18 on the back 18x10 and 245/40 ZR18 on the front 18x9. What would be a size I could go with that would give me more support without raising the car to much? What about larger tires in the back... would it help any? If so, what size?

[Zatrekaz]

According to AM the best tire size for my rims are:

18x9:
275/35-18
Chrome S Style Wheel 94-04 (18x9) at AmericanMuscle.com - Free Shipping!

18x10:
285/35-18
Chrome S Style Wheel 94-04 (18x10) at AmericanMuscle.com - Free Shipping!

I currently run a 245/40 on the front and 265/35 on the rear. Maybe this is my problem? Seems like my tires are way off what would be good for my rims.

[Zatrekaz]

[Lefty]

Here's an easy answer. To stiffen up your ride more, get stiffer springs.

[Zatrekaz]

I'm just wondering if my tires being smaller than they need to be would cause it?

[willis6er]

i guess it could be but you are always going to feel and hear the road more when you get bigger rims