90 IROC owners: what rear springs came on your car from the factory?
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Joined: Jul 1999
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From: Fla
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
90 IROC owners: what rear springs came on your car from the factory?
I have NNNs on mine, just wondering what everyone else has. 
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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!
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