18x9.5 up front? nop

Reply Subscribe

Thread Tools

Search this Thread

May 10, 2010 | 06:30 PM

canadiangta

Thread Starter

Junior Member

Joined: Jan 2002

Posts: 43

Likes: 0

From: Sask Canada

18x9.5 up front? nop

Im going bonkers trying to find a 1 peice wheel. Settin up for road, want to do 18x9.5 all around, 275/35-18 JUST LIKE PROJECT SNOWBALL in gm high tech mag. Boss 338 almost fit, some dealers say ya, no problem, some say nope, hub wont clear. I need 9.5 wide to get the tires i need.

Boss 338 18x9.5
5"BS -4mm offset

275/35-18
same diameter, radius, and circumfrence as factory 245/50-16

Any help???

May 10, 2010 | 08:29 PM

$//<86TA>\\'s Avatar$

//<86TA>\\

Supreme Member

iTrader: (15)

Joined: Aug 2006

Posts: 12,807

Likes: 108

From: Central NJ

Car: 86 Trans Am

Engine: 408 stroker sbc

Transmission: TKO600

Axle/Gears: Moser full floater m9, 3:70 trutrac

Re: 18x9.5 up front? nop

ccw?

May 10, 2010 | 08:45 PM

fast377

Member

iTrader: (4)

Joined: Feb 2004

Posts: 266

Likes: 2

Car: 91 Z28

Engine: LS1

Transmission: t-56

Axle/Gears: 3.73 4th gen 10 bolt

Re: 18x9.5 up front? nop

I have them up front...AND I run coilovers. Mine are an Italian wheel that is no longer made. CCW, Fikse, HRE, and all the good wheels will make some to fit. An 18x9.5 with a stock C5 Z06 offset will fit with a spacer (same spacer needed to fit 4th gen wheels).

May 10, 2010 | 09:10 PM

Atilla the Fun

On Probation

Joined: Oct 2008

Posts: 6,319

Likes: 19

From: Northern Utah

Car: seeking '90.5-'92 'bird hardtop

Engine: several

Transmission: none

Axle/Gears: none

Re: 18x9.5 up front? nop

a -4mm offset will definitely be too far out away from the car. Ideally, a +19mm offset should fit best.

May 11, 2010 | 12:59 AM

Tony89GTA

Supreme Member

iTrader: (7)

Joined: Jul 2000

Posts: 2,047

Likes: 2

From: Prince George, BC, Canada

Car: 89 GTA

Engine: 5.7L Supercharged

Transmission: T-56

Axle/Gears: Moser 9" 3.70

Re: 18x9.5 up front? nop

A 9" with a 5.5" BS wheel in the front should work fine with the 275/35-18.

Last edited by Tony89GTA; May 11, 2010 at 10:13 AM.

May 11, 2010 | 07:55 AM

Atilla the Fun

On Probation

Joined: Oct 2008

Posts: 6,319

Likes: 19

From: Northern Utah

Car: seeking '90.5-'92 'bird hardtop

Engine: several

Transmission: none

Axle/Gears: none

Re: 18x9.5 up front? nop

a 275/35 really belongs on a 10.0-10.5" rim. 9.5 is about the minimum. 275/40s on 9s works because of the taller sidewall height, but doesn't work well.