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backspacing and offsets?

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Old Mar 20, 2009 | 10:36 AM
  #1  
87_GTA_5.7's Avatar
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Joined: May 2006
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From: Lake of the Ozarks, Missouri
Car: 1987 Pontiac GTA Trans Am
Engine: Basic Stroked SBC..383
Transmission: PerformaBuilt 700R4 3000 Stall
Axle/Gears: Moser 9in. 3:70s
backspacing and offsets?

I have found a set of wheels that the backspacing is 6 3/4 and offset is 38mm. Will I need to run spacers? Are these fronts or rears?
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Old Mar 20, 2009 | 10:55 AM
  #2  
Stephen's Avatar
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: backspacing and offsets?

Yes, you'll need spacers, regardless of if you run those on the front or rear. What are they? From a 4th gen or Vette?

http://www.skulte.com/adapterfaq.html
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Old Mar 20, 2009 | 11:17 AM
  #3  
87_GTA_5.7's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 254
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From: Lake of the Ozarks, Missouri
Car: 1987 Pontiac GTA Trans Am
Engine: Basic Stroked SBC..383
Transmission: PerformaBuilt 700R4 3000 Stall
Axle/Gears: Moser 9in. 3:70s
Re: backspacing and offsets?

Fikse, and Im sure they came off of a 4th gen..well damn I dont want them, I dont trust or like spacers..
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Old Mar 20, 2009 | 12:29 PM
  #4  
Stephen's Avatar
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iTrader: (12)
 
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: backspacing and offsets?

While I don't like adapters either....i buy what FITS.....but the ones that Skulte sell are strong 6061-T6 aluminum. 5 lug nuts hold them on, the have 5 studs to hold the wheels on, with 5 more lug nuts.

When I was doing CNC machining, I made a set myself, out of 6061-T56 aluminum too. That stuff is strong.



Even GM used slip-on spacers for aluminum drum early 3rd gens. But those were only 4mm thick.
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Old Mar 20, 2009 | 02:09 PM
  #5  
88redchicken's Avatar
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Joined: Oct 2008
Posts: 51
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From: Strathmore Alberta Canada
Car: 88 firebird
Engine: 350
Transmission: T-5
Axle/Gears: 10 bolt, 4.56's
Re: backspacing and offsets?

ive never had or even seen the skulte spacers in person, but i looked at those pictures with the TT2 wheel after that roll over on his site, gotta say, they would probably hold up to anything, plus fikse's are aawweessoommee. Need pics of these wheels, i would do it, my
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Old Mar 20, 2009 | 02:32 PM
  #6  
87_GTA_5.7's Avatar
Thread Starter
Member
 
Joined: May 2006
Posts: 254
Likes: 0
From: Lake of the Ozarks, Missouri
Car: 1987 Pontiac GTA Trans Am
Engine: Basic Stroked SBC..383
Transmission: PerformaBuilt 700R4 3000 Stall
Axle/Gears: Moser 9in. 3:70s
Re: backspacing and offsets?

The guy just sold them this morning he said. Iv got my eye on another set..trying to see if he would do any trading and some boot..
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