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My current setup is 19x10 +19 front and 19x11 +46 rear. 275 front, 305 rear.

Fitment.

Front could come outward further by 5mm or 10mm.

Rear: tight on the inside, nothing rubs, and fits fine on the outside. Could probably go outward 5 more mm max before rubbing so figure +41 ish.

Lowered, I don't think the offset you are thinking will work unless you go with a narrower tire, maybe stretched or with a good amount of camber.


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You're 19x11/ 46 and 305's . At 10 o'clock on the drivers side how much space do you have between the sidewall and the inner fender ?
 

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148545
tested out a 20X11 +30 wheels from my ZL1....definitely a "no-go"
148546
148547


sorry the wheel sizes above are
20X9.5 +08
20X11 +30

fronts surprisingly looked like they would work if I swapped to a 265 tire over the 285 currently on the rim. It definitely let me know I'm going to order 19's and not 20's now though.
 

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Make sure you deal with the wheel manufacturer that knows what you plan on doing. I ordered a set a 20 inch rims while the car was at its stock ride height however when I lowered it , tire starting to rub? Trying now where it’s hitting, I have the stock set bank on. Also, used Rennick lowering springs, pure garbage , Going to put Weapon X on this week see if there’s a difference. Good luck
How is a spring set "pure garbage?" Not much to go wrong with a spring. Are the rates incorrect?
 

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I'm on 19x10.5 305/30R19 all around. Offset is 15MM front 35MM rear... (My rear should have been 40mm as I get a slight fender rub over large dips with a fully loaded down car.
 
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