99-04 Rear End in 94-98

Discussion in 'The Garage' started by Deceptive GT, Apr 18, 2015.

  1. Deceptive GT

    Deceptive GT Active Member

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    Anyone ever do this? I know it is possible. I was thinking of doing it in my Cobra. Any pics of before and after?
     
  2. 96blak54

    96blak54 Legend

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    If my mind recalls correctly, the 99up are longer, but should still bolt up
     
  3. Deceptive GT

    Deceptive GT Active Member

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    Correct, I think it is about an inch and a half wider for the 99-04 than the 94-98. It makes the tires a little more flush or should with the body lines.
     
  4. 96blak54

    96blak54 Legend

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    Makes sense.
     
  5. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    IRS fits so why not?
     
  6. 96blak54

    96blak54 Legend

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    ^ good call! Availability is the kicker.
     
  7. Deceptive GT

    Deceptive GT Active Member

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    I already have my suspension for the car and an IRS is not so great at the power level I want to be at. At least not the IRS we have to use.
     
  8. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    I meant the IRS fits without much issue so the stick will fit also, same size and all.
     
  9. Tony Corley

    Tony Corley New Member

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    It bolts in, is 3/4" wider per side. The lower bolt holes are larger, so you will need to change the rear bushings in your lower control arms, or use lowers from a 99-04. It fits, but I don't see any advantage too it. More rotating weight and more unsprung weight, not to mention changing the front and rear track width. I'm actually going the opposite way and putting Fox length axles in my '94, and changing the front lower control arms to Fox width. Cut down on unspung weight and allow a better offset on the rear wheel, and tuck the fronts under the car more.
     
  10. Magic

    Magic Well-Known Member

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    Not true. They can hold the power with the proper upgrades.
    One example: https://www.youtube.com/watch?v=NygBzdg8cUA
     
  11. RichV

    RichV Well-Known Member

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    But you want track width for better handling, no? That is a benefit, same with using wheel spacers to maximize the width.
     
  12. Tony Corley

    Tony Corley New Member

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    I am a drag racer, so I always think along those lines. But even at that, why not run the shorter axles for less reciprocating weight, and just change wheel offset to adjust track width?