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'89 IROC wheels on a '91 RS?

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Old Jul 18, 2007 | 03:52 PM
  #1  
rs_boy's Avatar
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From: Gallup, New Mexico
Car: '89 IROC-Z Convertible & '91 RS
'89 IROC wheels on a '91 RS?

Ok, I'm not sure if this is the place to post this, but I'm gonna try it anyways. I've got my old '89 IROC-Z (stock) wheels with new rubber and I want to throw em on my '91 RS. I could do this, right? I imagine the bolt pattern is the same...I'd appreciate any input. Thanks.
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Old Jul 18, 2007 | 03:57 PM
  #2  
2tonedmaro89's Avatar
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From: oviedo, FL
Car: '91 RS
Engine: 5.0L gross *** tbi
Transmission: 700r4
Axle/Gears: 2.73
Re: '89 IROC wheels on a '91 RS?

yea any rim from another third gen will fit.....i put ss s10 rims on my 91 rs
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Old Jul 18, 2007 | 03:58 PM
  #3  
The Project's Avatar
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: '89 IROC wheels on a '91 RS?

No problems at all. Bolt pattern same and back space same............put em on and off you go......
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Old Jul 18, 2007 | 08:57 PM
  #4  
facelessnumber's Avatar
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
Re: '89 IROC wheels on a '91 RS?

IROC wheels look pretty good on a 91 RS, in my opinion...
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Old Jul 18, 2007 | 10:05 PM
  #5  
rwdtech's Avatar
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From: Indianapolis
Car: 1991 Z28 (sold)
Re: '89 IROC wheels on a '91 RS?

got any more pitchers of that car?
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Old Jul 19, 2007 | 01:27 AM
  #6  
86NiteRider's Avatar
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From: Somewhere around the South Side of Chicago just crusin' in one of the Niteriders
Car: 92RS 25th Anniv./88 IROC Z28 Vert
Engine: 305 TBI w/Tpi Air / 305 TPI
Transmission: 700r4/700r4
Axle/Gears: Posi
Re: '89 IROC wheels on a '91 RS?

Originally Posted by facelessnumber
IROC wheels look pretty good on a 91 RS, in my opinion...
And they look good on a 92 RS as well
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Old Jul 22, 2007 | 12:37 AM
  #7  
rs_boy's Avatar
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From: Gallup, New Mexico
Car: '89 IROC-Z Convertible & '91 RS
Re: '89 IROC wheels on a '91 RS?

Alright then. I kinda figured they'd fit. I'm thinkin they should look pretty sharp cuz I have a drop on the RS. Guess we'll see. Thanks guys.
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Old Jul 23, 2007 | 10:20 PM
  #8  
facelessnumber's Avatar
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
Re: '89 IROC wheels on a '91 RS?

Originally Posted by rwdtech
got any more pitchers of that car?
Sure. I've been trying the past couple of days to take some better ones, especially since I've done some suspension work. But haven't really had a chance, so here's what I do have:




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Old Jul 23, 2007 | 10:58 PM
  #9  
85S10projectz28's Avatar
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From: Byron Center, MI
Car: 91RS, 90 K5 Blazer
Engine: 91 355 TBI
Transmission: 91 700r4 with shift kit
Re: '89 IROC wheels on a '91 RS?

Originally Posted by facelessnumber
Sure. I've been trying the past couple of days to take some better ones, especially since I've done some suspension work. But haven't really had a chance, so here's what I do have:





Did you lift the rear? Also do you have spacers in the rear? The rear tires look like they sit out further than stock.
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Old Jul 23, 2007 | 11:17 PM
  #10  
facelessnumber's Avatar
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
Re: '89 IROC wheels on a '91 RS?

Originally Posted by 85S10projectz28
Did you lift the rear? Also do you have spacers in the rear? The rear tires look like they sit out further than stock.
Yes. 4th gen rear. In those pics I had the rearend raised (air shocks) because I was concerned about cutting up the tires. They're dead even with the fender lip. After replacing my springs and bump stops, I've got the height right again and I'm not worried about it. (Hence my wanting to take new pics.)

Eventually I'll either get some wheels with the right offset or go back to a thirdgen rear, but first I've got some body work to do. It never ends...
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Old Jul 24, 2007 | 04:43 PM
  #11  
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From: N/a
Car: 1986 IROCZ
Engine: LB9....rebuilding coming soon
Transmission: rebuilt 700R4
Re: '89 IROC wheels on a '91 RS?

those arent 89 iroc wheels theyre 85-87 iroc wheels believe me i had both kinds on my old 86
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Old Jul 24, 2007 | 05:06 PM
  #12  
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
Re: '89 IROC wheels on a '91 RS?

Originally Posted by IROCME
those arent 89 iroc wheels theyre 85-87 iroc wheels believe me i had both kinds on my old 86
Yep. They came from an '87.
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