LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Looking into aftermarket wheels, need help

Thread Tools
 
Search this Thread
 
Old Jun 25, 2015 | 01:10 AM
  #1  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default Looking into aftermarket wheels, need help

im looking into purchasing these wheels. it says that they can be drilled into a 5x115 pattern. they are 19x9.5. with a 38 offset. will these work? the compatible cars deal says they wont fit. is it the width of the wheels that is too large? or the offset? i dont know what offset works on these cars. i dont know all these fitment questions, as ive never purchased aftermarket wheels before and had to figure out all this info before. so any help would be appreciated.

http://www.ebay.com/itm/4-NEW-SPEC-1-SP08-19x9-5-WHEELS-GLOSS-BLACK-MACHINED-RIMS-5-LUG-CUSTOM-DRILLED-/141512225692?hash=item20f2c9339c&vxp=mtr&rmvSB=true


they have different sizes available as well. from what ive gathered the 9.5 on a 38 offset will either stick out past the fenders, or rub struts. so there are a few other options available also.




so what would be my best bet? i thought the 8.5 wide in the 18 or 19s with the 32 offset would be my best option? i dont know. ive never had to do all this for a aftermarket wheel before. lol
Reply
Old Jun 25, 2015 | 06:48 AM
  #2  
tim4daflow's Avatar
Launching!
 
Joined: Jun 2013
Posts: 235
Likes: 0
Default

it may be close depending on the size tire you choose to go with the rim itself should mount and be pretty close to flush with the vehicle but the tires rubbing on the struts will be the problem on these car i have 20 X 9 on mine they are 35 offset ill add a pic
Reply
Old Jun 25, 2015 | 07:18 AM
  #3  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

do you have rubbing with your set up? i dont know if id want the 18's or 19's so havent even began to look at tires yet. basically just trying to figure out rim fitment before i dive into tires also. but it sounds like i need to figure both out at the same time.
Reply
Old Jun 25, 2015 | 08:05 AM
  #4  
tim4daflow's Avatar
Launching!
 
Joined: Jun 2013
Posts: 235
Likes: 0
Default

yes you need to figure both out because that 19 x 9.5 rim may fit good by itself but with a tire it may rub the strut. i dont have any rubbing on mine im close to the strut but not rubbing even on bumps it doesnt rub
Reply
Old Jun 25, 2015 | 08:28 AM
  #5  
z28SSilvest's Avatar
11 Second Club
 
Joined: Aug 2012
Posts: 730
Likes: 0
From: Middletown, DE
Default

Check OEWheels LLC. I'd go with at least a 18x10.5 in the rear (if you're set on getting 18s). Personally Id go with 17s and put a bigger tire on there
Reply
Old Jun 25, 2015 | 08:26 PM
  #6  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

Originally Posted by z28SSilvest
Check OEWheels LLC. I'd go with at least a 18x10.5 in the rear (if you're set on getting 18s). Personally Id go with 17s and put a bigger tire on there
you know this is going on a 06 monte carlo ss? no way a 10.5 would fit in rear
Reply
Old Jun 25, 2015 | 08:51 PM
  #7  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

well if i do the 18x8.5 ill probably stick to a size pretty close to stock. so probably do a 235 50 18. as it should be pretty close.
i dont know what size tire would be equivilanet to stock in a 19x8.5

i used to know of a tire and size calculator to do plus sizing and it would recommend a tire size that would be equivalent to the stock dimensions

** edit, found a calculator. if going 19x8.5 id do a 235/45R19

just found out the stock rim width is 7.5 with a 9.5 wide tire. i dont know if a 235 on a 18 or 19 will have the "stretched" tire look to it, or if i need to go a hair wider
Reply
Old Jun 26, 2015 | 06:33 AM
  #8  
92builtbird's Avatar
TECH Apprentice
 
Joined: Jul 2007
Posts: 325
Likes: 1
Default

235 is narrow for an 8.5
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Jun 26, 2015 | 07:32 AM
  #9  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

i got to looking around it looks like a 245 45 18 would work, or a 245 40 19.
Reply
Old Jun 26, 2015 | 10:59 AM
  #10  
91parkave's Avatar
Moderator
15 Year Member
iTrader: (4)
 
Joined: Feb 2008
Posts: 2,079
Likes: 9
From: Arizona
Default

Keep in mind gxps come with 255/45 18 on a 8inch rim
Reply
Old Jun 29, 2015 | 08:59 PM
  #11  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

but arent gxps staggered? wider in front than rear? would that work on the mcss?
Reply
Old Jun 30, 2015 | 08:02 PM
  #12  
Killerb's Avatar
Teching In
 
Joined: Apr 2010
Posts: 19
Likes: 0
From: NY
Default

Running 18x9 +36 offset with 275 40 18''s all around, yes all 4four corners, and have no rub. I think the 9.5'' would be cutting it very close.
Reply
Old Jun 30, 2015 | 08:35 PM
  #13  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

ok how does offset work. the bigger the number the more it sticks out? like a 35,36 or 38 will stick further out than say a 32?
Reply
Old Jul 1, 2015 | 01:15 AM
  #14  
The Guz's Avatar
TECH Junkie
20 Year Member
Photogenic
Liked
iTrader: (8)
 
Joined: Dec 2004
Posts: 3,460
Likes: 12
From: Lawndale, CA (310)
Default

The lower the number the more the wheel will stick out. +35 to +42 is a pretty good look on w-bodies. You could easily pull of the 18x8.5's with the +35 offset. The 19x8.5's with the +32 offset would work. You will definitely be rolling the fenders with those. A 9" wheel on the rear is pushing it.

On my 99 I run 5x114.3, 18x8 +35 on 245/45-18. My fenders have been rolled for a long time as the car is lowered on the GMPP kit. This bolt pattern works and it opens up more possibilities. I am running boss style 353 concave on my 99.

Hope this helps.

Name:  IMG_3143b_zpszpipukeh.jpg
Views: 344
Size:  117.9 KB

Name:  IMG_3210_zpsvr2fdohn.jpg
Views: 392
Size:  247.5 KB

Last edited by The Guz; Jul 1, 2015 at 01:22 AM.
Reply
Old Jul 1, 2015 | 05:31 AM
  #15  
SteveCZ28's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Nov 2009
Posts: 152
Likes: 0
From: Greene,Ia
Default

awesome. thanks for that bit of info.
ill ask the company if i could get the 18x8.5 with a 35 offset in the 5x115 bolt pattern, as the website says that will be a 5x114.3. never hurts to ask.
why would it go to a 32 offset with the 19x8.5? couldnt i just plus size the tire between the 18 and 19 and still get the same overall height with a 19 as the 18?

i likre those wheels on your gp. if i could get those in something darker id love to have those.
Reply
Old Jul 1, 2015 | 10:55 AM
  #16  
The Guz's Avatar
TECH Junkie
20 Year Member
Photogenic
Liked
iTrader: (8)
 
Joined: Dec 2004
Posts: 3,460
Likes: 12
From: Lawndale, CA (310)
Default

The height is not the issue with the whee and tire. It's the offset and how the wheel sits farther out. You could always adjust the camber so that the wheels sit more in at the top. I've seen some do that when running an 18x9 with a +32 offset.

These are the wheels I have. I had to go with 5x114.3 since they didn't offer the 5x115 on the color choice I went with.

http://www.bossmotorsports.com/custo...=15881&cat=466
Reply




All times are GMT -5. The time now is 02:04 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE