IRS in a 5.0?

1

1990gtstang

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Apr 24, 2004

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May 25, 2004

#1

• May 25, 2004

• #1

i was wondering if there was some way to put an independant rear suspension in that back of my 90 gt? if so how do i and what parts and if anybody has any pics that would be great

thanks

Brandon

 

ECU5.0

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raleigh, nc

May 25, 2004

#2

• May 25, 2004

• #2

im sure it can be done. just gonna have to fab up some brackets and relocate your shocks im sure

 

1

1990gtstang

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#3

• May 25, 2004

• #3

would anyone know where to even get an irs ?

 

ECU5.0

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#4

• May 25, 2004

• #4

there was one for sale a long time ago on here in the classifieds. you could check ebay or maybe a junk yard

 

Legendary

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City of Angels

May 25, 2004

#5

• May 25, 2004

• #5

From what I read, the IRS should bolt up to our fox body with a little modifications. There is a suspension page in my sig (page 8) that touches on the subject (very lightly).

 

1

1990gtstang

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#6

• May 25, 2004

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that irs would make my fox ride nicer right? and how much performance would i lose?

 

ECU5.0

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#7

• May 25, 2004

• #7

it would handle like a dream if you got the right shocks and what not. you wouldnt lose any performance until you got into the big power and started snapping axles. it would make your car handle much better and launch much better

 

8

88mustangGT

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#8

• May 25, 2004

• #8

ya i have been very intrested in this sense the irs came out in the cobras, dont they get horable wheel hope though? i would assume it would still be there in our 5.0s. i read they do bolt right up with little fabrication, mostly just removing **** and drilling new holes.

 

1

1990gtstang

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#9

• May 25, 2004

• #9

what kind of shocks/ springs should i get if i can find an irs. id get both front and rears and ive heard progressive rate are good

 

1

1990gtstang

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• May 25, 2004

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an irs would come with rear disk brakes as well correct? so i would probably have to upgrade wheels and mc

 

ECU5.0

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#11

• May 25, 2004

• #11

definetly would...i didnt even think about that...but yes you would have to get new tires and master cylinder

 

trbkrb

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Houston, TX

May 25, 2004

#12

• May 25, 2004

• #12

Here is some info on it:

http://www.mouthbreather.net/IRSSWAP.HTML

 

ECU5.0

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#13

• May 25, 2004

• #13

that would be an awesome thing to do...but would you have to get a special length drive shaft or would a stock one work?

 

1

1990gtstang

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#14

• May 25, 2004

• #14

i think so...

 

85_SS_302_Coupe

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May 25, 2004

#15

• May 25, 2004

• #15

An IRS is only going to benefit you if you're into autocross racing or you're just looking for a smooth handling street car. If you're at all interested in drag racing, stick with a nice 5 link rear suspension like MM sells or something like it, and it'll corner nearly as good if not better than some custom IRS setup, and you'll still be able to drag race your ass off.

 

Matt90GT

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Oregon

May 25, 2004

#16

• May 25, 2004

• #16

The other problem with the IRS is the width! The 9+ cars are about 3" wider total on the rear track than the fox cars. This is like pumping a huge dose of understeer into the handling of the car. Thus the mention at the end of the article it was removed for a more traditional 3 link.

It is going to take some time to dial in the handling and buy a K member designed for the IRs out back.

 

Legendary

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May 26, 2004

#17

• May 26, 2004

• #17

85_SS_302_Coupe said:

stick with a nice 5 link rear suspension like MM sells or something like it

Click to expand...

Maximum Motorsports makes a 5 link suspension? Or did you mean 3 link.

 

STANGateURlilSS

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USA & SANDBOX

May 26, 2004

#18

• May 26, 2004

• #18

yes the 99+ irs rearend fits in a fox.. the only real problem is the width as someone else said.. brake lines.. but everything else is basically bolt in..

the ride is better then stock fox.. but a watts link, panhard bar setup is the better way to go if you want the best handling