too much offset??? - PowerStrokeNation : Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 19 (permalink) Old 12-31-2007, 02:09 PM Thread Starter
PSN Local
 
panteramatt's Avatar
 
Join Date: Dec 2007
Location: South Jersey
Posts: 245
too much offset???

I just ordered a set of 17x9" rims for my 2000 psd and they have a 6" offset? I will be adding a 4" lift and 35's. Is this too much offset? Wuill the tires stick far out?
panteramatt is offline  
Sponsored Links
Advertisement
 
post #2 of 19 (permalink) Old 12-31-2007, 02:16 PM
PSN Local
 
platinum01's Avatar
 
Join Date: Nov 2007
Location: murfreesboro TN
Posts: 106
Re: too much offset???

you only need about 4-4 1/2 inches backspacing, they're probably gonna stick out quite a bit.

platinum edition, 7.3 automatic, Dp-tuner, AEM bruteforce intake, 4inch exhaust, 8inch fabtech, 37x13.5x20 kumho m/t, 20x10A/Racing thugs, FOX racing 2.0 stabilizer & Fox shocks, kenwood TV/DVD with navigation, sirius, bluetooth & reverse camera, line x, stainless toolbox, train horns,e-z down tailgate,
platinum01 is offline  
post #3 of 19 (permalink) Old 12-31-2007, 04:15 PM Thread Starter
PSN Local
 
panteramatt's Avatar
 
Join Date: Dec 2007
Location: South Jersey
Posts: 245
Re: too much offset???

That sucks.
panteramatt is offline  
 
post #4 of 19 (permalink) Old 12-31-2007, 04:20 PM
Banned
 
Join Date: Jul 2007
Location: Twilightzone
Posts: 7,764
Re: too much offset???

Backspace and offset are totally different.

Besides, the larger the backspace number, the Narrower the truck will be, not wider.

Get the value for the backspacing as that is a standard and you don't have to try and figure out what the hell their definition of offset is.

And for any trackwidth, the backspace of the wheel would have to be different if you changed the width of the wheel if you wanted to maintain the same trackwidth. So you can't just say x backspace looks the best unless you also include on x wide of a wheel.

On a 10" wide wheel 4 5/8" backspace looks very nice IMO.

So to equal the same trackwidth with a 9" wide wheel would require a backspace of 4 1/8" not 4 5/8".

You can't just say x backspace looks good when different wheel widths effect the trackwidth of the truck even if the backspace stays constant.
Charles is offline  
post #5 of 19 (permalink) Old 01-01-2008, 05:17 PM Thread Starter
PSN Local
 
panteramatt's Avatar
 
Join Date: Dec 2007
Location: South Jersey
Posts: 245
Re: too much offset???

So if the offset is 6", will it fit right on a 9" wide rim?
panteramatt is offline  
post #6 of 19 (permalink) Old 01-01-2008, 07:25 PM
Evil Genius
 
DCSpecial's Avatar
 
Join Date: Jul 2007
Location: Psych Ward
Posts: 2,190
Re: too much offset???

6" backspace will sit under the truck and you will rub on the leaf springs
As mentioned, on a 99-04 truck you will want approx 4.5" of backspacing (regardless of the width of the wheel).


6" Backspace is something like you would put on a lowered truck or maybe a 05-08 SD.


Offset is generally listed in mm and is positive or negative...it refers to the distance of the wheel mounting surface from the true center of the wheel.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
DCSpecial is offline  
post #7 of 19 (permalink) Old 01-01-2008, 08:18 PM
Banned
 
Join Date: Jul 2007
Location: Twilightzone
Posts: 7,764
Re: too much offset???

Some people might undercut the relevance of the wheel width to the question of what backspace to go with for the sake of simplicity, like it just doesn't matter... and a 4.5" backspace just looks good on a superduty no matter the wheel width.




If you ran an 8" wide wheel with 4.5" backspace the wheel would tuck up under the fender and totally neuder the truck's looks, not to mention try it's best to put a decent tire into the leafspring. A lot of the bigger wheels run narrower sizes, and 8" is nothing crazy.

Now on the other end of the normal wheel widths run on these trucks is a 12" wide wheel. Now a 4.5" backspace on a 12" wide wheel would put the trackwidth way to wide and make the truck look retarded for the opposite reason. Look like a fiesta ride with 14" (tall) wheels sticking completely out from under the fenders.


But even dumber than that is the fact that with the 8" wheel on the truck, the centerline of the wheel is actually a half inch Inside the mounting flange (the rotor face). And with the 12 " wheel the actual centerline of the wheel is one and a half inches Outside the mounting surface on the truck.

Meaning that between the two wheels options with the exact same backspace, the trackwidth of the truck changed Three inches just by changing wheel width.

If 3 inches is close enough you'd best leave design to someone else because a trackwidth change of a half and inch is VERY dramatic to a truck. A change of 3 inches is ridiculous. It totally changes the way the truck looks, and functions if we even want to go there. How about the 8" wheel putting the inside of the tire into the springs, and the 12" wheel putting the tire into the fender and bumper because of the arc created by having the tire centerline one and a half inches outside the hub.

You don't just Put a 4.5" backspace wheel on a superduty unless you just don't give a damn how your truck looks or functions.

Wheel width has got to be known. Why do they even offer all the other backspacings for 8 on 170 wheels? Must be all the other trucks that need those different spacings, lol. That or the fact that most people actually care about the way their truck turns out.

Charles is offline  
post #8 of 19 (permalink) Old 01-01-2008, 08:41 PM
PSN Veteran
 
recon250's Avatar
 
Join Date: Oct 2007
Location: renton wa
Posts: 703
Re: too much offset???

not to burst your bubble but most aftermarket wheels that are 9 inches wide carry a 4.5" backspace. even an 8' wide wheel with a 4.5" backspace will sit further out than the stock wheel. an 8'' wheel with a 285 tire will not rub. if ya want something bigger you should go to a wider wheel anyway.

02 f-250 xlt with leather, BTS trans. dp-tunes, afe. 40" bfg km2 on some 20's. and a bunch of other stuff that doesent make it any faster.
recon250 is offline  
post #9 of 19 (permalink) Old 01-01-2008, 08:43 PM
PSN Veteran
 
recon250's Avatar
 
Join Date: Oct 2007
Location: renton wa
Posts: 703
Re: too much offset???

Quote:
Originally Posted by Charles View Post
You don't just Put a 4.5" backspace wheel on a superduty unless you just don't give a damn how your truck looks or functions.
99% of aftermarket wheels for the superdutys come with a 4.5" or 5" backspace

02 f-250 xlt with leather, BTS trans. dp-tunes, afe. 40" bfg km2 on some 20's. and a bunch of other stuff that doesent make it any faster.
recon250 is offline  
post #10 of 19 (permalink) Old 01-01-2008, 09:22 PM
Banned
 
Join Date: Jul 2007
Location: Twilightzone
Posts: 7,764
Re: too much offset???

And what's the width on 99% of those wheels?

Put the same Backspace on a 12" wide wheel if want to look like an idiot.

Hey, if you just don't really care what the truck looks like, cool. If you do, you might want to GOS about the backspace more than the guy that cast the wheel did. There are wheel manufacturers that simply don't offer a decent offset for a superduty wheel.

Basically, a half an inch is the difference between, DAMN, that was a sharp looking truck, and yeah ....it looks good and all...... do you know why the tires stick out like that???

I've learned that most people are to stupid to know what they're doing anyway, and usually don't even pick the wheels because it just doesn't matter to them. They just want some big ole tyrees on theere truk.

They're not the ones I was worried about.
Charles is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke Diesel Forum 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 email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Pingbacks are On
Refbacks are On

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