'89 IROC wheels on a '91 RS?
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Joined: Jul 2002
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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.
Joined: Oct 2006
Posts: 3,041
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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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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
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Member
Joined: Jul 2002
Posts: 318
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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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Joined: Jun 2006
Posts: 130
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
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Joined: Jun 2007
Posts: 29
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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?
Did you lift the rear? Also do you have spacers in the rear? The rear tires look like they sit out further than stock.
Member
Joined: Jun 2006
Posts: 130
Likes: 0
Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
Re: '89 IROC wheels on a '91 RS?
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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Joined: May 2001
Posts: 509
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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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Joined: Jun 2006
Posts: 130
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Car: 91 RS
Engine: L03 carbed
Transmission: 700R4, rebuilt+kit
Axle/Gears: 3.42, posi, disc
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