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Do you guys know what the bolt pattern is on a 91 GTP? I found a good deal on some boss rims but not sure if they will fit. 5 X 100mm??
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1991 Pontiac Grand Prix GTP / 3.4 DOHC -
A W-body is most likely 5x115mm.-Brad-
89 Mustang : Future 60V6 Power
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i think you're either right, or close. it might have an odd bolt-spacing, i can't remember, like 114.5mm or something close to it...Originally posted by bszopi View Post
the info is on w-body, i know that.Comment
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The odd spacing would be 114.3mm-Brad-
89 Mustang : Future 60V6 Power
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5x115 38mm offset 16"x6.5" or 16"x8" If you have the cross lace wheels.Shane "RedZMonte"
2004 Corvette Z06 Commemorative Edition -VIRGIN
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-Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
2004 Subaru WRX STI -Lightly Modded (SOLD)
1994 Lumina Z34 -VIRGIN (SOLD)
1992 Lumina Z34-VIRGIN (RIP)
1992 L67 Lumina Z34 (SOLD)
1990 Turbo Grand Prix (SOLD)Comment
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I found it after i posted this is the correct answer> thanks guys!Originally posted by RedZMonte View Post1991 Pontiac Grand Prix GTP / 3.4 DOHCComment
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5x114.3 will fit w/ a centric hub ring but not ideal.. anything smaller or bigger will not work.
SShane "RedZMonte"
2004 Corvette Z06 Commemorative Edition -VIRGIN
1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
-Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
2004 Subaru WRX STI -Lightly Modded (SOLD)
1994 Lumina Z34 -VIRGIN (SOLD)
1992 Lumina Z34-VIRGIN (RIP)
1992 L67 Lumina Z34 (SOLD)
1990 Turbo Grand Prix (SOLD)Comment
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Ben had his studs break off with 114.3 rims. 114.3 are commonly used on mustangs i think.
5 x 115 for wbodies.Comment
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I don't think I would risk it either. I'm not sure what a hub ring looks like but seems kinda hack.Originally posted by blackbombshell95 View Post1991 Pontiac Grand Prix GTP / 3.4 DOHCComment
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Originally posted by GTP091 View Post
its not ideal but it works... it just centers the wheel to the hub so that it is not offcenter causing vibrations. it is only .7mm off so it does technically pull the studs in to the center a tiny bit.. Again not ideal but will work.. if there is a 5x115 option for your wheel of choice definatly get the correct bolt pattern.
5x114.3=5x4.5 which is a common RWD bolt pattern.. alot of GP guys run the mustang bullet wheels.
Last edited by RedZMonte; 11-11-2009, 08:22 PM.Shane "RedZMonte"
2004 Corvette Z06 Commemorative Edition -VIRGIN
1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
-Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
2004 Subaru WRX STI -Lightly Modded (SOLD)
1994 Lumina Z34 -VIRGIN (SOLD)
1992 Lumina Z34-VIRGIN (RIP)
1992 L67 Lumina Z34 (SOLD)
1990 Turbo Grand Prix (SOLD)Comment
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what is the difference between the first and second generation w-body for off-set and bolt pattern?1991 Grand Prix STE
3.4 DOHC
1 of 792 Produced
Extensive Mods Done
1991 Lumina Z34
3.4 DOHC
Getrag 284 5spd
1 of 30
Canadian Z34 Models Made with the Getrag 5spd Wahoooo!
1980 GMC Sierra Classic C25 With 18,000 ORIGINAL MILES!!!!
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from w-body.com
First Gen W-body
1988-1997 Oldsmobile, 1988-1996 Buick Regal, 1990-1994 Chevy Lumina, 1988-1996 Ponitac Grand Prix
16x6.5 Rim Diameter/Width
5x115 Bolt pattern
+38mm Offset
94-96 Pontiac 5-star 16x7, offset is also +25mm ( All B4U wheels are +25mm )
1989-1990 Pontiac Grand Prix TGP crosslace* wheels are:
16x8 Rims Diameter/Width
5x115 Bolt pattern
25mm Offset
*Crosslace rims were 16 x 8 until 1996. From 1997 and up, they became 16 x 6.5
Generation 1.5 W-Body
1995-1999 Chevy Monte Carlo, 1995-1999 Chevy Lumina
16 x 6.5 Rim Diameter/Width
5x115 Bolt Pattern
+38mm Offset/Backspacing
Second Gen W-Body
1997+ Grand Prix's, Impala, 2000+ Monte, Olds Intreuge, 1997+ Regals
16x6.5 Rim Diameter/Width
5x115 Bolt pattern
+52mm OffsetComment
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