Wheel offset

[Eric M]

I am currently running 1.5” wheel spacers with my factory 20” wheels on my 2016 Ecodiesel. They have 35x12.5 tires on them. With my aftermarket fender flares they sit right where I like them. My question is this-if I was to upgrade to a 22” or 24” wheel that’s 12 inches wide, how do I figure out what offset I would need? I see most wheels with a “lip” on them are -44 or -52. I’d like to keep the same stance I have now and NOT use any spacers, maybe have them stick out just a tad bit more if they have to because they are wider than my factory wheels.
My truck is lifted 6” as well. Thanks!

 

[Fast69Mopar]

I am currently running 1.5” wheel spacers with my factory 20” wheels on my 2016 Ecodiesel. They have 35x12.5 tires on them. With my aftermarket fender flares they sit right where I like them. My question is this-if I was to upgrade to a 22” or 24” wheel that’s 12 inches wide, how do I figure out what offset I would need? I see most wheels with a “lip” on them are -44 or -52. I’d like to keep the same stance I have now and NOT use any spacers, maybe have them stick out just a tad bit more if they have to because they are wider than my factory wheels.
My truck is lifted 6” as well. Thanks!

If you like the current stance and look of the wheel location here is how I measure for setting up new wheels.


Place a large level vertically next to the fender flare. Measure the distance from the outer lip of the wheel to the level. Record this distance. (Make sure the level is in the center of the wheel hub.) Next, remove a front wheel. Put the level back against the fender flare in line with the center of the wheel hub. Take your tape measure and measure the distance from the face of the wheel hub to the level.

Subtract the first, short distance from the second, longer distance and that is the edge of your wheel. Your wheel offset is the measurement from the face of the wheel hub away from the frame. . Your wheel backspacing is the measurement from the face of the hub towards the frame.

 

[CheechDogg.0n37s]

If you don't want to use wheel spacers and don't want to rub with a 22x12 or 24x12 wheel stay between -18 and -24 offset and you won't rub and have a good enough stance ...

 

[ScLeCo]

https://www.rimsntires.com/specspro...=12.0&et2=-24&text2=Sample 1: Hummer H2 wheel

 

[MartyZ]

I have -24mm on mine. Here is a pic for reference. I pulled off my fender flares the other day for some service so I took a picture of the offset
View media item 30719

 

[Lyle Longboat]

I bought 20x12 -51 Vision Razor rims for my 37/13.50 AMP Mud Attacks as I currently have the 2” wheel spacers I’m going to ditch.

 

[ram1500rsm]

So right now with the 1.5" spacers and stock 20x9 +19offset you have the equivalent of a 20x9 -19 offset (4.25" backspace). If you go with a 12" wide wheel, you'll be extending the wheel 3" or 76mm overall. So with a 12" width wheel and -19offset your inner clearance will move 1.5" towards the inside of the wheel well closer to the UCA compared to what you have now, and poke out and extra 1.5" towards the outside.

Making the offset more negative will start bringing the wheel further outwards and away from the UCA
with a -24 offset your inner clearance will move 1.3" towards the inside and poke 1.7" out
With a -48 offset your inner cleraance will move .4" towards the inside and will poke out 2.6"
with a -57 offset your inner clearance will remain the same you have now with your 20x9 -19offset wheel, your poke will 3" out.

 

[VA-RAM]

I am currently running 1.5” wheel spacers with my factory 20” wheels on my 2016 Ecodiesel. They have 35x12.5 tires on them. With my aftermarket fender flares they sit right where I like them. My question is this-if I was to upgrade to a 22” or 24” wheel that’s 12 inches wide, how do I figure out what offset I would need? I see most wheels with a “lip” on them are -44 or -52. I’d like to keep the same stance I have now and NOT use any spacers, maybe have them stick out just a tad bit more if they have to because they are wider than my factory wheels.
My truck is lifted 6” as well. Thanks!

OP...Go here and makes some changes and adjustment for what you are liking for and you can see the visual of what the impact is on position and clearance...

https://www.wheel-size.com/calc/

 

[Eric M]

So right now with the 1.5" spacers and stock 20x9 +19offset you have the equivalent of a 20x9 -19 offset (4.25" backspace). If you go with a 12" wide wheel, you'll be extending the wheel 3" or 76mm overall. So with a 12" width wheel and -19offset your inner clearance will move 1.5" towards the inside of the wheel well closer to the UCA compared to what you have now, and poke out and extra 1.5" towards the outside.

Making the offset more negative will start bringing the wheel further outwards and away from the UCA
with a -24 offset your inner clearance will move 1.3" towards the inside and poke 1.7" out
With a -48 offset your inner cleraance will move .4" towards the inside and will poke out 2.6"
with a -57 offset your inner clearance will remain the same you have now with your 20x9 -19offset wheel, your poke will 3" out.

This is very helpful-thank you. I can’t afford to have the wheel any closer to the spindle/UCA, so what if I went with a 24x10 with a -24 offset, and a 35/12.5/24 tire? Will that be close to my current stance? Thanks again for the help!

 

[RedSRT4Me]

This is very helpful-thank you. I can’t afford to have the wheel any closer to the spindle/UCA, so what if I went with a 24x10 with a -24 offset, and a 35/12.5/24 tire? Will that be close to my current stance? Thanks again for the help!

I run 20x10 -24mm on my rig without issue.

Wrapped in 37x12.5r20

You shouldn't have any problems.

 

[MartyZ]

I run 20x10 -24mm on my rig without issue.

Wrapped in 37x12.5r20

You shouldn't have any problems.

My 13.50s are what make mine rub. Same Wheel set up though. There isnt much trimming needed if you do run 13.50s. The outer edge of the tread hits the weld seam at the cab corners with 13.50s. I need to dig out my angle grinder and give myself some space.

 

[ram1500rsm]

This is very helpful-thank you. I can’t afford to have the wheel any closer to the spindle/UCA, so what if I went with a 24x10 with a -24 offset, and a 35/12.5/24 tire? Will that be close to my current stance? Thanks again for the help!

The calculator says 8mm less inner, so that will be like 0.3" more towards the uca. I think that might work for you, i just don't know much about big wheels
You can use this calc to check things out when it comes to the offset
https://www.1010tires.com/Tools/Wheel-Offset-Calculator#
You'll need a -32 offset to keep things exactly the same on the inner side, this can vary by wheel sizes as well as some tires as wider than others.