Rim size help ....urgent

[ramhunter9]

Im looking at new rims .... I have no idea what I have now but I like how they stick out flush with my fender flares . All I know is my rims are 8 lug and are 20"

The rims I found are this size ... does it sound right . Im running a 35x12.50-20

# Size: 20x10
# Offset: -12mm
# Backspacing: 5.07"

 

[ramhunter9]

Anyone !!

 

[The Assassin]

You're good. But fail for not tagging your own post. lol

 

[ramhunter9]

I dont want to just hear im good ...lol Expaline it to me I want to learn

 

[ramhunter9]

and will a 20x10 be a ok rim for a 12.50 wide tire ?

 

[The Assassin]

Yes...

What I usually do is cross reference with a site like tirerack.com

 

[ramhunter9]

I did that .... dont understand dammmit

 

[The Assassin]

Wheel sizing - Wikipedia, the free encyclopedia

 

[ramhunter9]

never mind I ordered them .... if they dont fit im banning you ..lol

 

[The Assassin]

lol

 

[txbass06]

A 10" wide rim is just fine for a 12.5 wide tire. Hell, I'm running 12.5's on my factory 16x8's lol

 

[0212353]

i don't know **** about this..........but I know you are going to want to know what the backspacing is.

 

[4X HEMI]

I believe the 2500's are 20x9 wheels, not sure what the factory offset is on the stock wheels but it appears you have aftermarket rims on it now.

Do you know what the offset is on your chrome wheels? ... The offset works like this: A positive offset will take the rims closer to the truck, as it goes to zero and minus offset numbers it takes it away from your truck!
The 5.07 backspace should be fine, I believe most 2500's are 5 to 5¼" backspace, the -12 offset will bring the wheel away from the truck so it should be a great set up.

As for the width of your rim, 10" wide wheels are perfect for a 12.5" tire.

 

[The Assassin]

I believe the 2500's are 20x9 wheels, not sure what the factory offset is on the stock wheels but it appears you have aftermarket rims on it now.

Do you know what the offset is on your chrome wheels? ... The offset works like this: A positive offset will take the rims closer to the truck, as it goes to zero and minus offset numbers it takes it away from your truck!
The 5.07 offset should be fine, I believe most 2500's are 5 to 5¼" backspace, the -12 offset will bring the wheel away from the truck so it should be a great set up.

As for the width of your rim, 10" wide wheels are perfect for a 12.5" tire.

Thanks Harold, I was trying to find a simple way to explain it, and failed lol

 

[Redtruck-VA]

10"(w)-5"(bs)=5" with a -12mm (.473") Offset. You are looking very close to 5.5" from the hub flange to the outer edge of the rim..

 

[BigMike005]

This should help you out Dave......

https://www.rsracing.com/tech-wheel.html

 

[Redtruck-VA]

This should help you out Ramhunter......

https://www.rsracing.com/tech-wheel.html

Mike, excellent chart/information.

 

[The Assassin]

+1

I might make that a sticky.

 

[The Assassin]

LOL...wait...

Dave, you HAVE this site as a sticky under wheel/tire info!