2008 factory backspacing? - DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum
DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums & Owners Club! - Ram Truck Forum > Dodge Ram Forum - Mod Zone - Custom Dodge Ram Mods - Dodge Ram Performance > Dodge Ram Wheels And Tires


Notices

Dodge Ram Wheels And Tires General discussion related to wheels and tires.


Vendor Highlight! - Check these guys out for great deals on Parts and Accessories!
Reply
 
Thread Tools
  #1  
Old 09-15-2013, 03:37 PM
hemitrx4's Avatar
hemitrx4 hemitrx4 is offline
Dodge Ram Forum Senior Member
 
Join Date: Jul 2010
Location: Wainwright, Alberta
Posts: 128
Gender: Male
Vehicle: 2008 Dodge Ram Quad Cab
Trim Level: TRX4
Color: Black Crystal Pearl
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
hemitrx4 is on a distinguished road
Default 2008 factory backspacing?

Does anyone know what the backspacing is for the 17x8.5 factory wheels on a 2008 Ram 1500? I`ve looked on here as well as the internet and can`t seem to find a straight answer, one site said 4.75 and 5.5. I`ve read that the spindles are different on the 2008 and have less clearance than the 2007. I want to figure out the backspacing I need to run 33x12.5 tires on 20" wheels.
Reply With Quote
Sponsored Links
Advertisement
 
  #2  
Old 09-15-2013, 04:02 PM
LowUFO's Avatar
LowUFO LowUFO is offline
Dodge Ram Forum Senior Member
 
Join Date: Aug 2012
Location: Toronto, ON
Age: 50
Posts: 2,427
Gender: Male
Vehicle: 2012 Dodge Ram 1500
Trim Level: Sport Crew
Color: True Blue Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 9
Rep:1125
LowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud of
Default

4.75" backspacing on all 17 x 8.5" rims on 1500s except the Mega Cab which used 5.75" backspacing.

Here's a backspacing to offset conversion chart to help you as well..

__________________
295/60r20 Toyo Open Country AT Xtremes (previous tires were 285/65/20 BFG TA KO2s for 75k klms), Bilstein 5100s, Solid Fold tonneau, Rhino Liner, Husky Weatherbeaters, Magnaflow 18 muffler, Mufflex 5" tips, Carbon wrapped interior trim, Chime delete, Britax baby seat...

Last edited by LowUFO; 09-15-2013 at 04:05 PM.
Reply With Quote
  #3  
Old 09-17-2013, 07:34 AM
hemitrx4's Avatar
hemitrx4 hemitrx4 is offline
Dodge Ram Forum Senior Member
 
Join Date: Jul 2010
Location: Wainwright, Alberta
Posts: 128
Gender: Male
Vehicle: 2008 Dodge Ram Quad Cab
Trim Level: TRX4
Color: Black Crystal Pearl
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
hemitrx4 is on a distinguished road
Default

Is the backspacing different for the factory 20" wheels?
Reply With Quote
 
  #4  
Old 09-17-2013, 02:52 PM
Canadian Hemi Pride's Avatar
Canadian Hemi Pride Canadian Hemi Pride is offline
Dodge Ram Forum Senior Member
 
Join Date: Jan 2013
Location: Hamilton, Ontario
Age: 25
Posts: 6,712
Gender: Male
Vehicle: 2008 Dodge Ram 1500
Trim Level: SXT 4x4
Color: Silver/ Black
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 13
Rep:2826
Canadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond reputeCanadian Hemi Pride has a reputation beyond repute
Default

Quote:
Originally Posted by hemitrx4 View Post
Is the backspacing different for the factory 20" wheels?
I believe so.. I am pretty certain the 4th gens 20's have are different, so I would think they would be too.
__________________

Brandon...Check out my build thread here
IG:@briley59
Reply With Quote
  #5  
Old 09-17-2013, 07:41 PM
LowUFO's Avatar
LowUFO LowUFO is offline
Dodge Ram Forum Senior Member
 
Join Date: Aug 2012
Location: Toronto, ON
Age: 50
Posts: 2,427
Gender: Male
Vehicle: 2012 Dodge Ram 1500
Trim Level: Sport Crew
Color: True Blue Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 9
Rep:1125
LowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud of
Default

Yes, 5.75" on the 20s.
__________________
295/60r20 Toyo Open Country AT Xtremes (previous tires were 285/65/20 BFG TA KO2s for 75k klms), Bilstein 5100s, Solid Fold tonneau, Rhino Liner, Husky Weatherbeaters, Magnaflow 18 muffler, Mufflex 5" tips, Carbon wrapped interior trim, Chime delete, Britax baby seat...
Reply With Quote
  #6  
Old 09-18-2013, 12:28 AM
hemitrx4's Avatar
hemitrx4 hemitrx4 is offline
Dodge Ram Forum Senior Member
 
Join Date: Jul 2010
Location: Wainwright, Alberta
Posts: 128
Gender: Male
Vehicle: 2008 Dodge Ram Quad Cab
Trim Level: TRX4
Color: Black Crystal Pearl
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
hemitrx4 is on a distinguished road
Default

Ok, here`s what I don`t understand. I squeezed in my wheelwell and measured the clearance between the sidewall of the tire and the spindle and it`s approx. 3/4" and about the same between the tread and the upper ball joint. So with the factory 20" rims wouldn`t the extra inch of backspacing make the rim almost rub on the spindle. I`m looking at 20x10 rims and I just don`t get how it seems that a bigger rims and more backspacing than my 17" wheels adds up to more clearance for wider tires. Going by my math for 20x10 rims I`d need 4.5" backspacing max for a 12.5" wide tire. I just don`t want to order and get stuck with the wrong wheels.
Reply With Quote
  #7  
Old 09-18-2013, 06:01 PM
LowUFO's Avatar
LowUFO LowUFO is offline
Dodge Ram Forum Senior Member
 
Join Date: Aug 2012
Location: Toronto, ON
Age: 50
Posts: 2,427
Gender: Male
Vehicle: 2012 Dodge Ram 1500
Trim Level: Sport Crew
Color: True Blue Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 9
Rep:1125
LowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud ofLowUFO has much to be proud of
Default

Yeah, I think most guys run -24 offset or 4.5" backspacing for a ten inch wheel.
__________________
295/60r20 Toyo Open Country AT Xtremes (previous tires were 285/65/20 BFG TA KO2s for 75k klms), Bilstein 5100s, Solid Fold tonneau, Rhino Liner, Husky Weatherbeaters, Magnaflow 18 muffler, Mufflex 5" tips, Carbon wrapped interior trim, Chime delete, Britax baby seat...
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not 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

Forum Jump


Advertisement



All times are GMT -4. The time now is 06:07 AM.


Copyright © VerticalScope Inc. All rights reserved.
Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vB.Sponsors