let me just chime in saying 19x9 et48 is pretty flush, with some people complaining some minor poke (BBS Dinan 19" set on their site). Note, they can run 265 tires on 1" drop.... et50-et52 is the cleanest rear ive heard of with those targets...
Converting your selection by changing offset of the Dinan 19x9 et48 which is nearly border line flush, read below.
With 18x8.5 et38 you will see vs the Dinan set:
- 6.35mm of rim width (0.25" from both outside and inside)
+ 10mm of offset
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19x9 et44.65 is essentially going to be run.... equivalent to 18x8.5 et38 poke wise... thus approximately 4mm or so extra poke from the Dinan 19" set they run 265s on lowered with nearly no rub... Your tire choice of 255 will make things easier if you plan on lowering... either way unknown rub if lowered up to 1" as your 255 is 5mm less each side.. theoretically you could even afford a lowering kit....
hope that helps...... if it makes sense
CONCLUSION: Expect a 4-6mm overall rim poke.... also expect a null to 2mm extra poke of 255 tire at outermost in respect to the Dinan 19x9et48 on 265s..... TIRE BRAND MATTERS
ALL CLEAR stock suspension.... lowered up to 0.65" probably okay... Dinan springs 1" probably rub... calculator says :
https://www.willtheyfit.com/index.ph...8-5&offset2=38