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Topic: 99 Stang springs (Read 2446 times) previous topic - next topic

99 Stang springs

After doing a 5-lug conversion in the front, my steering became extra touchy. Changing to a mustang rack helped, but not enough. I now have the rear converted to 5-lug, and for the time being, the front tires are much shorter than the rear. End result, it steers very well with this raked look, and I also like the way the car sits. I just hate having different sized tires, so I will get 4 tires of the same size when I buy wheels that match. So, I wish to get front springs to lower it and firm up the ride. This is an 88 LX, so the springs are super soft and causes it to nose-drop when I stop. My question is, how much will 99 Mustang springs lower it, and what is the ride quality of them?

99 Stang springs

Reply #1 –
Several people here have them installed and the general consensus is that it will lower it 1" to 1-1/2" if you have a 302.  The spring rates are different in some years as well as different models (Bullitt, Mach I, Cobra, GT) so your best bet is to do a Google search for a SN95 and SN197 spring rate chart so you can see the differences.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

99 Stang springs

Reply #2 –
I believe Vinnie has 99 GT front and rear springs with no caster camber plates or adjustable rear control arms and his car aligned perfect. Looks like it dropped the car about an inch or so all around.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

99 Stang springs

Reply #3 –
I've also got 99 GT springs, about a 1 1/2 inch drop, and I can tell you straight up what my alignment specs are.  I've got a full 2 degrees negative camber.  I had only about 1.7 degrees caster until I dropped the rear to match, now I've got about 3.8 degrees and the steering feel is much less twitchy and the on center feel is much better. 
2 degrees negative camber combined with 245/45zr17's adds up to a car that pulls oddly when driving on roads that have grooves worn on them, and I run into bump steer when hitting bumps while turning with the outboard (compressed) wheel. 

2 things happening for me this winter  1. caster camber plates  2. bump-steer kit.

99 Stang springs

Reply #4 –
i also have 1999 Mustang springs under mine. I like the drop. It's not too much. I can still take a speed bump without worries.

'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

99 Stang springs

Reply #5 –
I ordered the new wheels last night. They are 16x8. I will be using 225 60's for the tires. Looks like the spring change will have to happen a couple or three months from now. It looks like 1 inch drop is what I am after. I don't think an extra half inch will hurt anything. In fact, I may get aluminum heads later on and that might just put it right where it needs to be. I'll get the 99 GT springs, and I think caster/camber plates are needed as well. The 5-lug just makes for some wicked front end geometry. What does a bumpsteer kit consist of?