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Wheel offset question

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Custom wheel maker swears 20x11 +26, 20x12 +62 would be right.

+26 I can see working on the front as the 350R was +24

The +62 on the rear is where I’m scratching my head. A 11.5 was +56, would you really need to push them in 6mm more?
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Custom wheel maker swears 20x11 +26, 20x12 +62 would be right.

+26 I can see working on the front as the 350R was +24

The +62 on the rear is where I’m scratching my head. A 11.5 was +56, would you really need to push them out 6mm more?
Actually that is 6mm farther in... 12" is about 12 mm wider than 11.5"... so about 6 mm each way.
 
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Actually that is 6mm farther in... 12" is about 12 mm wider than 11.5"... so about 6 mm each way.
Correct, that’s what I’m asking is at 62 the outer wheel face will be the same but the 12.5 mm will be pushed towards the suspension. Will this run into the shock mount?

I think the 2mm in on the fronts will be okay, I’m just concerned with the rears.
S650 Mustang Wheel offset question IMG_7383


I think this visually shows what I’m trying to say.
 

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Custom wheel maker swears 20x11 +26, 20x12 +62 would be right.

+26 I can see working on the front as the 350R was +24

The +62 on the rear is where I’m scratching my head. A 11.5 was +56, would you really need to push them in 6mm more?
just add 25 mm to your stock offset and boom perfect!

S650 Mustang Wheel offset question IMG_8515
 

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It seems to add up... 11" @ 50, 11.5" @ 56, and 12" @ 62. Though I am not sure if it will be a problem with suspension components. I still have clearance to the inside with 11" @ 50 offset... so it looks as though it would fit, but I would definitely check measurements before purchase being that close.
 


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It seems to add up... 11" @ 50, 11.5" @ 56, and 12" @ 62. Though I am not sure if it will be a problem with suspension components. I still have clearance to the inside with 11" @ 50 offset... so it looks as though it would fit, but I would definitely check measurements before purchase being that close.
Yeah, running into the upper shock mount is concerning me. Factory is 11 +54. I’ll measure tire sidewall to shock mount to double check.
 

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It seems to add up... 11" @ 50, 11.5" @ 56, and 12" @ 62. Though I am not sure if it will be a problem with suspension components. I still have clearance to the inside with 11" @ 50 offset... so it looks as though it would fit, but I would definitely check measurements before purchase being that close.
Actually corrects a good bit of under steer in corners !
 

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Yeah, running into the upper shock mount is concerning me. Factory is 11 +54. I’ll measure tire sidewall to shock mount to double check.
what tire size do you plan on running?
 
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335/25-20 or a 325/25-20 on the rear an 305/25-20 on the front
 
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How did this work out?
I ended up with 19x11 +24 with 305-30/19 and 19.11.5 +56 with 325-30/19. It works fine but if I did it over I’d do +26 on the front.
 
 








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