please confirm BS for wheel tire combo and tire choice - JeepForum.com
 
LinkBack Thread Tools
post #1 of 5 Old 05-20-2009, 11:05 AM Thread Starter
jgorm
Web Wheeler
 
jgorm's Avatar
2006 LJ Wrangler 
 
Join Date: Aug 2007
Location: San Diego
Posts: 2,355
please confirm BS for wheel tire combo and tire choice

I have the RC 2.5" 1.25" combo and want to run 33 x 12.5" tires on some cragar soft 8s. RC says to run 4.5" of BS. I have the teraflex rear disk brake kit and had to run 50mm spacers to clear my stock wheels. I would like to ditch these, and was wondering of 4.5" BS will be enough to do that.

so if this is correct i would really like someone who knows better to confirm
Cragar soft 8s, 5 x 4.5" lug, 8" wide, 15" wheels
PN#3975812P has an offset of 6 and a back spacer of 4.75
http://www.cragar.com/ProductView.as...0&bq=%3fc%3d15

Can anyone explain what the offset does and if its in mm or in?

For tires i was thinking about the BFG 33x12.50R15/C (all terrain TA KO)
It says it needs an 8.5 to 11" rim, but i figure an 8" may work fine. would it be better to get a 10" rim? Or should i go with the 33x 10" tires?

jgorm is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 05-20-2009, 11:30 AM
Apex
Recon death squad
 
Apex's Avatar
2002 TJ Wrangler 
 
Join Date: Aug 2008
Location: Berea, OH
Posts: 5,530
15x8 will work fine it's actually the prefered wheel width for a 12.50 tire...I run 4.5" backspacing on my soft 8s with a 33x12.50, many people run 4" backspacing.

the more "deep dish" the wheel, the more backspacing it will have and the further the tire will stick out past the flare and more clearance you will have from the brakes



Silver 02 TJ Apex Edition. SOLD

Current vehicles: 06 F250 Superduty - 6.0L PSD Straight piped and tuned
03 CBR600RR -1 +2, Yoshi'd & Battlaxed

Quote:
Originally Posted by bddisi View Post
Finesse in crawling looks way cooler than momentum.
Apex is offline  
post #3 of 5 Old 05-20-2009, 10:16 PM
CB3
Web Wheeler
2006 LJ Wrangler 
 
Join Date: Apr 2007
Posts: 3,849
Quote:
Originally Posted by Jeep02Apex View Post
15x8 will work fine it's actually the prefered wheel width for a 12.50 tire...I run 4.5" backspacing on my soft 8s with a 33x12.50, many people run 4" backspacing.
I assume you mean with some type of steer stop adjustment or other means to prevent rubbing during hard turns?

I'm running a 33 X 10.5 R15 tire on a 15 X 8 with 4.5 BS and I have full turning radius with no rubbing. I have about 1/4" clearance between tire and LCA at full turning lock.

How can you that with same 15 X 8 wheel size and 4.5 BS with same diameter 33" tire, but 2" wider tire? Do you have steer stops adjusted? Other?
CB3 is offline  
 
post #4 of 5 Old 05-21-2009, 01:58 AM
+Crusader+
Registered User
 
Join Date: Apr 2008
Location: NW
Posts: 1,983
Quote:
Originally Posted by Jeep02Apex View Post
the more "deep dish" the wheel, the more backspacing it will have
Technically the more "deep dish" the wheel is, the LESS backspacing it will have, numerically. Usually 3.75"-4" is a guarantee for 33x12.50 clearance. Apex is able to get away with a half inch more tuck, who knows.

__________________
"The only physical problem Obamacare won't be able to fix, is bustin' your @$$." Dennis Miller
+Crusader+ is offline  
post #5 of 5 Old 05-21-2009, 09:49 AM
Apex
Recon death squad
 
Apex's Avatar
2002 TJ Wrangler 
 
Join Date: Aug 2008
Location: Berea, OH
Posts: 5,530
Quote:
Originally Posted by CB3 View Post
I assume you mean with some type of steer stop adjustment or other means to prevent rubbing during hard turns?

I'm running a 33 X 10.5 R15 tire on a 15 X 8 with 4.5 BS and I have full turning radius with no rubbing. I have about 1/4" clearance between tire and LCA at full turning lock.

How can you that with same 15 X 8 wheel size and 4.5 BS with same diameter 33" tire, but 2" wider tire? Do you have steer stops adjusted? Other?
No steer stop adjustments at all...I can go full lock either way and not hit my LCAs

Quote:
Originally Posted by TheHoff View Post
Technically the more "deep dish" the wheel is, the LESS backspacing it will have, numerically. Usually 3.75"-4" is a guarantee for 33x12.50 clearance. Apex is able to get away with a half inch more tuck, who knows.
Thanks for clearing that up Hoff, I knew what I meant but it came out backwards.

And as far as a half inch more tuck...I don't worry about my flares. The 4.5" worked perfectly


Silver 02 TJ Apex Edition. SOLD

Current vehicles: 06 F250 Superduty - 6.0L PSD Straight piped and tuned
03 CBR600RR -1 +2, Yoshi'd & Battlaxed

Quote:
Originally Posted by bddisi View Post
Finesse in crawling looks way cooler than momentum.
Apex is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
searched - can anyone confirm that this is the right wheel/tire combo for stock? krapgnus Tires & Wheels 13 07-14-2009 11:15 PM
Wheel/tire combo? DirtyredJY Tires & Wheels 2 07-14-2009 10:07 AM
88 XJ tire/wheel combo! md11fan Tires & Wheels 0 04-08-2008 04:43 PM
wheel/tire combo... lakersman13 Tires & Wheels 0 08-05-2007 04:19 PM
Will I rub with this tire/wheel combo? 0IIIII0 Tires & Wheels 2 03-31-2007 10:49 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome