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90 vs 91 ground effects

Old 01-25-2019, 10:11 AM
  #1  
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90 vs 91 ground effects

I have searched but havent been able to find probably dont have the right search terms and have looked at pictures.

I cant figure out what parts I need to go 85-90 style. I have ground effects and am looking for front lower spoiler. Is the rear bumper different or is it that little junky plastic piece in in front of the bumper that is different between years?

If its so insignificant its not noticeable I wouldnt change it but I dont want my car to look mismatched either.

Thanks
tigerss is offline  
Old 02-02-2019, 10:55 AM
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Re: 90 vs 91 ground effects

I'm thinking there's a small difference in the shape of the main bumper cover, but I know for a fact the lower deflector fits on either cover. I had a 91-92 lower spoiler on my 87 IROC. As far as the rear goes, I'm sure it was shaped a bit different at the area of the lower rear quarter spoiler meeting place as well. Actually after googling pictures, the whole lower rear cover on the 91-92 is shaped quite different than the 85-90.
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Old 02-03-2019, 02:43 PM
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Car: 87 Iroc vert, t-top
Engine: 305
Transmission: 700R4
Re: 90 vs 91 ground effects

Rear bumper is different, front bumper is the same- only thing different is the chin spoiler which is a bolt on part.
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Old 02-09-2019, 09:37 AM
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Car: 1990 IROC-Z
Engine: 5.0 TBI
Transmission: 700R4
Re: 90 vs 91 ground effects

If the front bumper is the same does that mean the grills are interchangeable? I would rather have the “bow tie” of the 91-92 than the “CAMARO” of the 85-90.
SliceIROCZ is offline  
Old 02-09-2019, 06:35 PM
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Re: 90 vs 91 ground effects

Originally Posted by SliceIROCZ View Post
If the front bumper is the same does that mean the grills are interchangeable? I would rather have the “bow tie” of the 91-92 than the “CAMARO” of the 85-90.
Yes. I had a red bowtie on my IROC as well.
BIRD91ZRAG is offline  
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