Spacer Question???

I have a set of 12.5MM spacers that I want to put on my rears of my 1997 Lexus ES300 does anyone think I will have any issues putting these spacers on? This is also depressing ride I am at right now due to  the problems I was having due to for some reason I kept bottoming out. A few of you guys have been asking and I'm running K-Sport coilovers. My wheels are 18x8(F) 18x8.5(R). Let me know if spacers are possible. Thanks Jerry
 
 
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i would say get about 1" all around. and dump that sucker. but i believe youre going to need new studs at least if you go 12.5mm. i could be wrong, but the general rule of thumb is that you can turn the lugnuts at least 6 full turns.  goodluck
Charley

If I put these spacers it should come pretty close to sitting flush with fender right?

hard to tell from those angles, get a measuring tape out and see how much room you have