IRS in a 5.0?

[1990gtstang]

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]

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

 

[1990gtstang]

would anyone know where to even get an irs ?

 

[ECU5.0]

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

 

[Legendary]

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).

 

[1990gtstang]

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

 

[ECU5.0]

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

 

[88mustangGT]

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.

 

[1990gtstang]

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

 

[1990gtstang]

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

 

[ECU5.0]

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

 

[trbkrb]

Here is some info on it:

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

 

[ECU5.0]

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?

 

[1990gtstang]

i think so...

 

[85_SS_302_Coupe]

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]

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]

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

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

 

[STANGateURlilSS]

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