backspacing for rims 2017 f250 - Ford Truck Enthusiasts Forums



2017+ Super Duty The 2017+ Ford F250, F350, F450 and F550 Super Duty Pickup and Chassis Cab
Sponsored by:
Sponsored by:

backspacing for rims 2017 f250

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 11-03-2016, 02:21 AM
FONRDAY's Avatar
FONRDAY FONRDAY is offline
Elder User
Thread Starter
 
Join Date: Feb 2012
Location: Capitola
Posts: 532
FONRDAY is starting off with a positive reputation.
backspacing for rims 2017 f250

I want new rims but what back spacing are you guys using on 20s plus machined black 20s for sale with michelins with 299 miles so far
Reply With Quote
  #2  
Old 11-03-2016, 11:18 PM
RainDesert's Avatar
RainDesert RainDesert is online now
Posting Guru
 
Join Date: Jan 2015
Location: Oregon
Posts: 2,165
RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.
Offset seems to be the more common number I see when figuring backspace or offset while wheel shopping. I chose to powder coat some older factory 20's because I don't like the tires sticking out these days. To minimize the wheels/tires sticking out much past the fenders, chose the +20mm offset range. Factory is +40mm on a 8" wheel. Also, an aftermarket 20x9 will already stick out(and in) a 1/2in farther than stock if offset was the same. So by going to a +20 on a 9" wheel, you will be out 1/2" plus 20 mm for a total of 1.29".
Reply With Quote
  #3  
Old 11-04-2016, 09:59 AM
PwerStroke99's Avatar
PwerStroke99 PwerStroke99 is offline
Posting Guru
 
Join Date: May 2002
Location: Washington
Posts: 2,474
PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.
I went with a 0 offset with my new wheels with 18s
Reply With Quote
  #4  
Old 11-04-2016, 11:45 AM
Sleepyguy Sleepyguy is offline
Elder User
 
Join Date: Sep 2016
Location: Edmonton Alberta Canada
Posts: 753
Sleepyguy is starting off with a positive reputation.
I though stock factory was -12?
Reply With Quote
  #5  
Old 11-04-2016, 03:35 PM
Bread Truck Bread Truck is offline
Freshman User
 
Join Date: Oct 2016
Posts: 39
Bread Truck is starting off with a positive reputation.
PwerStroke99 could you post a pic of your truck straight on so we can see how far they stick out?

Thank you!
Reply With Quote
  #6  
Old 11-04-2016, 04:05 PM
PwerStroke99's Avatar
PwerStroke99 PwerStroke99 is offline
Posting Guru
 
Join Date: May 2002
Location: Washington
Posts: 2,474
PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.
This is the best straight on pic I have right now. You can see the rear tire pretty good. I will try and get a better pic this weekend after I wash it.

Reply With Quote
  #7  
Old 11-04-2016, 04:06 PM
PwerStroke99's Avatar
PwerStroke99 PwerStroke99 is offline
Posting Guru
 
Join Date: May 2002
Location: Washington
Posts: 2,474
PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.
Quote:
Originally Posted by Sleepyguy View Post
I though stock factory was -12?
This is what I was told too.
Reply With Quote
  #8  
Old 11-04-2016, 10:55 PM
PwerStroke99's Avatar
PwerStroke99 PwerStroke99 is offline
Posting Guru
 
Join Date: May 2002
Location: Washington
Posts: 2,474
PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.PwerStroke99 has a very good reputation on FTE.
Quote:
Originally Posted by Bread Truck View Post
PwerStroke99 could you post a pic of your truck straight on so we can see how far they stick out?

Thank you!
here are a couple more I took earlier today.


Reply With Quote
  #9  
Old 11-04-2016, 11:26 PM
SuperD77 SuperD77 is offline
Junior User
 
Join Date: Oct 2016
Posts: 80
SuperD77 is starting off with a positive reputation.
So a +20 will stick out less than a 0 offset correct ?
Reply With Quote
  #10  
Old 11-04-2016, 11:51 PM
Sleepyguy Sleepyguy is offline
Elder User
 
Join Date: Sep 2016
Location: Edmonton Alberta Canada
Posts: 753
Sleepyguy is starting off with a positive reputation.
Quote:
Originally Posted by SuperD77 View Post
So a +20 will stick out less than a 0 offset correct ?
Positive
The hub mounting surface is located in the front half of the wheel closer to the wheel face. This tucks the entire wheel in toward the brakes and vehicle suspension. Positive offset wheels are generally found on front-wheel drive cars and newer rear-wheel drive cars.

Negative
The hub mounting surface is located in the back half of the wheel closer to the back lip flange. This moves the wheel out away from the vehicle brakes and suspension. "Deep dish" wheels and wheels for lifted trucks are typically a negative offset.

If the offset of the wheel is not correct for the car, the handling can be adversely affected. Often, when changing the width of the wheel, the offset will also need to change to maintain proper clearances inside the wheel well. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We test fit thousands of different vehicle and wheel size combinations to confirm which ones work correctly. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.

*Backspacing, similar to offset, is the distance from the hub mounting surface to the inside lip of the wheel (measured in inches).
Reply With Quote
  #11  
Old 11-05-2016, 12:11 AM
EpicCowlick's Avatar
EpicCowlick EpicCowlick is offline
Post Fiend
 
Join Date: Apr 2004
Location: North of Salt Lake City
Posts: 5,092
EpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant futureEpicCowlick has a brilliant future
Quote:
Originally Posted by Sleepyguy View Post
Positive
The hub mounting surface is located in the front half of the wheel closer to the wheel face. This tucks the entire wheel in toward the brakes and vehicle suspension. Positive offset wheels are generally found on front-wheel drive cars and newer rear-wheel drive cars.

Negative
The hub mounting surface is located in the back half of the wheel closer to the back lip flange. This moves the wheel out away from the vehicle brakes and suspension. "Deep dish" wheels and wheels for lifted trucks are typically a negative offset.

If the offset of the wheel is not correct for the car, the handling can be adversely affected. Often, when changing the width of the wheel, the offset will also need to change to maintain proper clearances inside the wheel well. If the offset were to stay the same while you added width, the additional width would be split evenly between the inside and outside. For most cars, this won't work correctly. We test fit thousands of different vehicle and wheel size combinations to confirm which ones work correctly. Our extensive database allows our sales staff to offer you the perfect fit for your vehicle.

*Backspacing, similar to offset, is the distance from the hub mounting surface to the inside lip of the wheel (measured in inches).

Sleepy, can you comment on using spacers or wheel adapters? Is there a half inch option available for our hub centric wheels? Some of us have put 37 inch tires on the OEM wheels and the tires do rub on the control arm at full steering lock. The wheel wouldn't need much more space to prevent that.
Reply With Quote
  #12  
Old 11-05-2016, 08:18 AM
kylant kylant is offline
Elder User
 
Join Date: Sep 2016
Posts: 722
kylant is starting off with a positive reputation.
Quote:
Originally Posted by Sleepyguy View Post
I though stock factory was -12?
I am 99% sure the wheels are 8 wide with a +40mm offset

Quote:
Originally Posted by SuperD77 View Post
So a +20 will stick out less than a 0 offset correct ?
correct, positive offset moves the wheel in towards the suspension. reducing the offset, moves the wheel out from the suspension.
Reply With Quote
  #13  
Old 11-05-2016, 09:45 AM
RainDesert's Avatar
RainDesert RainDesert is online now
Posting Guru
 
Join Date: Jan 2015
Location: Oregon
Posts: 2,165
RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.
Factory offset has been 40mm since the 2005+ front suspension change. Prior to that is was 6mm on leaf spring trucks.
Reply With Quote
  #14  
Old 11-05-2016, 09:51 AM
RainDesert's Avatar
RainDesert RainDesert is online now
Posting Guru
 
Join Date: Jan 2015
Location: Oregon
Posts: 2,165
RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.RainDesert has a good reputation on FTE.
Quote:
Originally Posted by EpicCowlick View Post
Is there a half inch option available for our hub centric wheels? Some of us have put 37 inch tires on the OEM wheels and the tires do rub on the control arm at full steering lock. The wheel wouldn't need much more space to prevent that.
There are 1/8" spacers that usually still allow enough wheel to sit on the hub. I have not tried it in years on any of my newer trucks, but I have had them in the past. The tire store had them in stock.

All the other spacers bolt on, and anything short of 2" requires you cut your studs down. No way IMO.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2017 Superduty Rim Size Powerslide 2017+ Super Duty 4 09-26-2017 06:38 PM
295/65/20's Mayberry 1999 to 2016 Super Duty 5 08-14-2017 09:59 PM
2014 20" Take off Rims on a 2005 F250 Mudman 1999 to 2016 Super Duty 7 05-27-2017 10:46 AM
Wrong rims basstbone113 1999 to 2016 Super Duty 1 01-22-2017 01:14 PM
Anybody Interested in trading their 18's for 20's STROKE'IN 2017+ Super Duty 6 12-12-2016 06:40 AM


Go Back   Ford Truck Enthusiasts Forums >

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 09:04 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.