So instead of running spacers on existing/old wheels I think I’d rather buy new wheels.

My question is what are the best choices for a staggered setup given these 3 options? Help on tire sizing would be appreciated too. Car is RWD. Thanks.

20x10.5 +24mm

20x9.5 +40mm

20x8.5 +38mm

 

I have 20x8.5 and 20x10 with 40m offsets on front and back. I went with a 245/40/20 and 275/35/20 tires. Had to do some meds to get to fit and had fenders rolled they barely brush the inner fender wells on dip . I'm gonna take inner fender wells out and lower .5 to 1 inch and I'll see how that ride . Smooth ride now thoughp

 

Size and offset will largely be determine by the wheels you get. There's no one size fit all. When I was buying my wheels, I was told to stick to 8.5" - 9" in front and 9.5"-10" in rears to avoid having to do major fender work.
I'm runnings Weds Maverick 709M, these are my tire sizes and offset. I'm also RWD.
@Mtandle your tires are a bit too tall, maybe that's why you are rubbing. Correct size for 20 are 245/35/20 & 275/30/20. or you could do 235/40/20 & 265/35/20 if you wanted a bit more side wall profile. I didn't have to do any fender work. It just rub a tiny bit when I hit a big dip at high speed. All good otherwise if I'm driving normally around town. I'm also lowered on RSR coilovers about 2-2.25" drop all-around.

Front: 20x9+37 H-Disk - 245/35/20
Rear: 20x10 +42 L-Disk - 275/30/20
Tires: Michelin A/S 3+

 

I am on full AirLift suspension, running AG Luxury Vanquish 20x9 +35 with Falken FK510 245/35 in the front and 20x10.5 +45 with 275/30 in the rear. My fenders are rolled in the front and shaved in the rear, at this ride height, I still rub the fender liners in the front on bumps and if I have people in the car

 

Thanks for the help guys. I decided to go with with 8.5” - 245/35 square setup.

 

So OP... going with any suspension changes? And what year model GS do you have?

 

450h. I’m going to run the tein flex AVS coilovers.