99 and 03/04 irs question

gregor185

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Someone school me in difference between the IRS out of 99/01 and 03/04 cobras.I've been told bracing is better in the newer one but can't u strengthen the older ones or doesn't that work like that?
 

TRBO VNM

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The 03/04 came with a front diff brace. It is a crossmember that mounts between the front lower control arms points and mounts to the front diff bushing location. Kenny Brown came out with a front brace because of this. I find it funny when I see people with terminators wasted their money on the KB one

The halfshaft setup is also different.
 
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Competition

Hood Rich
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Compton, CA
99 IRS had 28 spline axles. 01 switched to a 31 spline axle. 03/04 went to a upgraded 31 spline half shaft stronger than the 01 31 spline shafts.
 

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