Offset help please - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

michaelinmech · 03-03-2020, 01:54 PM

Have a stock 2012 Camaro SS with factory 8" & 9" wheels with 35mm offset on fronts and 40mm offset on rears.

If I 'upgrade' to 1 inch wider wheels, 9" front and 10" rear with the same 35mm and 40mm offsets as factory, will the 1 inch additional width be spilt half under the car and half out toward the fender lip - or will the entire 1" additional width be all out toward the fender lip?

I've confused myself trying to figure this out and need some help - THANKS!

LsxDoctor · 03-03-2020, 02:00 PM

Backspacing should tell you

michaelinmech · 03-03-2020, 02:10 PM

Quote:

Originally Posted by LsxDoctor

Backspacing should tell you

Yes, but most of the wheels I am considering, all they provide online is offset numbers, not backspacing.

LsxDoctor · 03-03-2020, 02:33 PM

Quote:

Originally Posted by michaelinmech

Yes, but most of the wheels I am considering, all they provide online is offset numbers, not backspacing.

https://www.camaro5.com/forums/showthread.php?t=111604

Sir Nuke · 03-04-2020, 05:40 AM

Quote:

Originally Posted by michaelinmech

Have a stock 2012 Camaro SS with factory 8" & 9" wheels with 35mm offset on fronts and 40mm offset on rears.

If I 'upgrade' to 1 inch wider wheels, 9" front and 10" rear with the same 35mm and 40mm offsets as factory, will the 1 inch additional width be spilt half under the car and half out toward the fender lip - or will the entire 1" additional width be all out toward the fender lip?

I've confused myself trying to figure this out and need some help - THANKS!

I can tell you FOR SURE.....a 9" front with a 35mm offset WILL work....as I ran 9" 40mm offset wheels (actually 9 x 20 STOCK REARS) for years.

and I am sure the 10's would be fine as well.

Deputy347k9 · 03-04-2020, 05:46 AM

On the front of my 2014 Camaro I am running ZL1 replica wheels that are 20"X10" wide with 35 MM offset. They are wrapped with 275/35/20 Continental Extreme Contact tires. ZERO issues.

michaelinmech · 03-05-2020, 05:56 PM

Quote:

Originally Posted by Deputy347k9

On the front of my 2014 Camaro I am running ZL1 replica wheels that are 20"X10" wide with 35 MM offset. They are wrapped with 275/35/20 Continental Extreme Contact tires. ZERO issues.

And what are you running on the rear? Thanks

Rock-It Man · 03-06-2020, 05:12 PM

If the wheels are 1 inch wider and the offset is the same, then yes, there will be 1/2" less inner clearance and 1/2" more protrusion.

03-03-2020, 01:54 PM	#1
michaelinmech Drives: 2018 ZL1 Convertible Join Date: Nov 2011 Location: Mechanicsburg, PA Posts: 165	Offset help please Have a stock 2012 Camaro SS with factory 8" & 9" wheels with 35mm offset on fronts and 40mm offset on rears. If I 'upgrade' to 1 inch wider wheels, 9" front and 10" rear with the same 35mm and 40mm offsets as factory, will the 1 inch additional width be spilt half under the car and half out toward the fender lip - or will the entire 1" additional width be all out toward the fender lip? I've confused myself trying to figure this out and need some help - THANKS!

03-03-2020, 02:00 PM	#2
LsxDoctor 15 Year LS1Tech Member Drives: 2010 ss 391ci LS3 Join Date: Apr 2017 Location: Albuquerque Posts: 252	Backspacing should tell you __________________ GJDM

03-04-2020, 05:46 AM	#6
Deputy347k9 Drives: 2014 Ashen Gray Convertible Join Date: Apr 2017 Location: Havelock, NC Posts: 1,328	On the front of my 2014 Camaro I am running ZL1 replica wheels that are 20"X10" wide with 35 MM offset. They are wrapped with 275/35/20 Continental Extreme Contact tires. ZERO issues. __________________

03-06-2020, 05:12 PM	#8
Rock-It Man 376 cubic inches of fun Drives: 2023 Camaro ZL1 A10 Join Date: Jul 2010 Location: MA Posts: 4,033 View My Garage	If the wheels are 1 inch wider and the offset is the same, then yes, there will be 1/2" less inner clearance and 1/2" more protrusion.