best tire fit for 18x8.5 & 18x10

[TriGem2k]

Front 18x8.5 is 54mm

Rear 18X10 is 48mm. With 48mm in the rear there were no clearance issues HOWEVER just for precaution & looks I put on the OEM 5mm spacers. So now my rear is a 43mm and it fits perfectly with a 285/30/18 tire.

[shark_r]

ok thanks.
looks like i'll go with a 10 mm spacer on the rears, that should put me to 48.
do you think i'll need to replace the lugnuts, or is it still goin to be safe with the ones i have right now ?

[TriGem2k]

Definitely will require longer wheel bolts. Honestly I think you would be better off with 12mm spacers rather than 10mm.

Just to be on the safe side.