PRIVATE For Sale / Trade Classifieds Sell/Trade your stuff for free! NO COMMERCIAL POSTS!

Backspacing and Offset

Thread Tools
 
Search this Thread
 
Old Jan 10, 2013 | 01:42 PM
  #1  
Spuds's Avatar
Thread Starter
|
Member
Joined: May 2007
Posts: 33
From: Houston, Texas
Default Backspacing and Offset

I am a little confused with the effects backspacing and offset have on any given wheel.

I have the chrome wheel on my '09 Alpha, but I really like the Dick Cepek Gun Metal Torques. I already have 305/70's, giving me a little extra width and they are fairly new, less than 10K miles.

I would like to go with 315/70-17's but can't justify tossing the like new tires I bought not too long ago. Besides, the 33's provide more power for towing.

In short, what will be the effect of staying with 16" wheels and simply going to the Torques? Will they give the tires a wider stance?
 
Attached Thumbnails Backspacing and Offset-snag_program-0000.jpg  
Old Jan 10, 2013 | 03:04 PM
  #2  
Bunger's Avatar
Senior Member
Joined: Sep 2009
Posts: 1,356
From: Connecticut
Default

Read this:
http://en.wikipedia.org/wiki/Offset_(wheel)

Back space is the more important number. You need the same back space as OEM (4.5) for the same stance. Less backspace will push the tires out more but you may have rubbing issues with a wider stance. I'd stick with a wheel as close to OEM specs as possible, which is 7.5" wide.

Don't forget that H3's need Hub Centric wheels meaning the center bore must be 101 mm diameter. Lug Centric wheels usually have a small center bore which won't work on H3's.
 
Old Jan 10, 2013 | 04:22 PM
  #3  
nijoma's Avatar
Senior Member
Joined: Jan 2011
Posts: 320
Default Stick with the tires

Keep the tires and put on a 16x8 or 16x9 rim. Just make sure it is made for the H3, the wider rim will give u that wider stance.
 
Old Jan 10, 2013 | 05:23 PM
  #4  
DaWgPoUnD's Avatar
Member
Joined: Jan 2012
Posts: 51
From: South Carolina
Old Jan 11, 2013 | 12:21 AM
  #5  
blaud87's Avatar
Junior Member
Joined: Dec 2010
Posts: 23
Default

Originally Posted by Bunger
Read this:
http://en.wikipedia.org/wiki/Offset_(wheel)

Back space is the more important number. You need the same back space as OEM (4.5) for the same stance. Less backspace will push the tires out more but you may have rubbing issues with a wider stance. I'd stick with a wheel as close to OEM specs as possible, which is 7.5" wide.

Don't forget that H3's need Hub Centric wheels meaning the center bore must be 101 mm diameter. Lug Centric wheels usually have a small center bore which won't work on H3's.
stock backspacing is not 4.5. I believe it is 5.75
 
Old Jan 11, 2013 | 05:40 AM
  #6  
Bunger's Avatar
Senior Member
Joined: Sep 2009
Posts: 1,356
From: Connecticut
Default

Originally Posted by blaud87
stock backspacing is not 4.5. I believe it is 5.75
Yes, you are right. Stock wheels have 5.75" backspace.

I had 4.5 on my mind because I've been looking at Rancho 4" lifts, which require wheels to have 4.5" backspace.
 
Old Jan 11, 2013 | 09:34 AM
  #7  
Spuds's Avatar
Thread Starter
|
Member
Joined: May 2007
Posts: 33
From: Houston, Texas
Default

Thanks for the replies.

There's not many aftermarket wheels that I would consider, but Dick Cepek is a legendary name in offroading. And the Torque Gun Metal wheels are only available in 16" and 17". Won't ever see them on any boulevard cruisers.

I have written Cepek to inquire about the 101mm wheel bore diameter. Will let everyone know their response.
 
Old Jan 24, 2013 | 03:32 PM
  #8  
dwilton's Avatar
Junior Member
Joined: Nov 2012
Posts: 13
From: Macomb, MI
Default

Originally Posted by Bunger
Read this:
http://en.wikipedia.org/wiki/Offset_(wheel)

Don't forget that H3's need Hub Centric wheels meaning the center bore must be 101 mm diameter. Lug Centric wheels usually have a small center bore which won't work on H3's.
I didn't know we had "Hub Centric" wheels. I mounted some Eagle USA wheels that are "Lug Centric" with a larger hole than needed.
So Far, I am not have any problems with balancing or vibrations...

But, I do agree. Although, Our Lug Pattern is the same as the GM 1/2 Ton trucks. Our center bore needs to be a lot bigger...
 
Old Jan 24, 2013 | 06:07 PM
  #9  
chimazo's Avatar
Junior Member
Joined: Aug 2008
Posts: 27
From:
Default

You don't have to buy wheels with the same hub bore, as there are hub rings in a zillion sizes that will allow your aftermarket wheel to fit the hub snugly. Many wheel manufacturers will only make wheels with a few bore sizes, so hub rings are used to allow them to fit a myriad of brands/models. They are cheap and usually plastic (polymer), and I've run a set on one of my cars for years.

Just an option so you don't limit your selection...
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
duffy2092
PRIVATE For Sale / Trade Classifieds
9
Jun 14, 2013 12:37 AM
Nxsov180db
PRIVATE For Sale / Trade Classifieds
0
Jul 14, 2008 12:17 AM
tbigity
PRIVATE For Sale / Trade Classifieds
3
Jan 27, 2008 02:04 AM
Brodie
PRIVATE For Sale / Trade Classifieds
4
Dec 21, 2007 01:48 PM
SublimeHummer
PRIVATE For Sale / Trade Classifieds
3
Apr 21, 2006 04:53 AM




All times are GMT -5. The time now is 02:49 AM.