Tyre size help

Yes, another one of these threads, sorry :(
I am looking at buying some new rims and tyres package from someone but not sure if this would fit. The fronts are 17x 8 +35 with a 235/45 and the rears are 17x 9 +38 with a 255/40. My car is lowered using lowering springs sitting at 330mm all around.
Tyres are too big to fit, yeah?

Ah thanks. That's what I thought. The tyres/ rims were all part of a package that a guy was selling. Rear tyres might still be too big though, isn't it?

Thanks for the help mate :)

Cheers, Dylan. What was your offset on the rear when you were running 255/40?

Maybe a stupid question (first time buying new rims) but what are the things to check to make sure it will not scrub against the guards/ fender/ suspension?
I did some googling but couldn't find any useful tips for beginners.

That's the thing though, I used that, and according to it the front 17x8 235/45 +35 would be 0mm flush with the fender, so it sounds like it would work...(likewise for 17x9 255/40 +38 would have 3mm clearance with the fenders according to the calculator, but lumix just mentioned having troubles with 235/40/17 17 x 9 +35) yet, all the research I have done seems to indicate that anything bigger than 215/40/17 +35 (front) would most likely cause issues, which is probably why I am quite confused as to how to know for sure.

I agree with Mrskylighter, good advice. The rolling diameter is what is going to cause the problems at the front. 
 
I'm running stock suspension and 215/40/17 (Front) is fine, keeps the rolling diameter close to factory. I should also mention I'm running Federal 595-SS tyres and I would say they are slightly wider due to the lip protection they have, compared to a tyre that doesn't. I have uploaded a couple of pictures to show what I mean about the lip protection and where it is scrubs on my rear with the 235/40/17 due to the guards not being rolled up.
 
Front. Showing the 595-SS lip protection. It makes the side wall of the tyre stick out from the guard, there is also a lip on the inside of the tyre that makes it sit extremely close to my strut. So when looking for new tyres take into account the overall design. 

 
Photo of the rear looking up. You can see the where the tyre 235/40/17 on 17 x 9 +35 just scrubs the guard. With 255/40/17 I would say you will need to roll up the lip to fit the wider tyre.

 

dylmrt
For reference I've run 215/40/17 up front and 255/40 on the rear with a 17" without problems.
 
with the 265/35/18 i've got now, there will be the occasional scrub on heavy drops.
 
 

Hi dylmrt
 
I was just curious what rim size offsets you are running with your tires? as I would also like to fit a 265/35/18 on mine as well.