Wondering if this setup would work on a gs350 20x8.5front and 20x9.5rear +37 offset front and rear?

 

easily but you also have to figure out what tire sizes you runnin

 

they are 235-35 front and 275-30 rears

 

It will work but 37 is weak for the front and aggressive for the rear. It's gonna look odd in my opinion.
It will look okay but there will be times you look at it and think the rear is not in propoprtion to the front.
My wife's gs has 9.5, 45 offset rear and that's right on the edge.

 

no problem with those sizes

 

I think it'll look fine. The rears are a bit aggressive and you'll definitely rub IMO or just about rub without fender mods. The front, you'll be fine and maybe require minimal fender mods but really it all depends on how low you go.

 

Actualy, the drop needs to be factored in, as long as your no more than an inch drop, your gold!

 

the rear is not aggressive at all... 9.5 +37, that's same as 10 +43, which is what most people have here.

fwiw, i have 9+34 and 10+37, which is equivalent to 8.5+28 and 9.5+30.

if you compare mine to OP's info, the front is 9mm more inset, the rear is 7mm.

with that said, front and rear tires are both overspec, so expect some rubbing

 

its gonna be dropped on tanabe df10s and i dont mind rolling the rear fenders.....how are the tires over spec? most people i see run a 245-35 and a 275-30 so isnt it pretty much the same?

 

With that front wheel/tire setup, you will be fine. The rear needs minimal mods, probably just the black fender line needs to be off.

 

if you are willing to play with fenders (if at all), these wheels won't come close to be problems.

a lot of people run these tire setup but that doesn't mean they aren't out of spec. 245/35/20 and 275/30/20, the overall diameter is about 1" larger than factory wheels. the larger diameter will cause it easier to rub. if you want spec size, then it's 245/30/20 and 275/25/20, but some people might think they are too much on the rubber band side

 

thanks for all the input guys!