Gday everyone,
Thinking of getting some larger rims for the HX van. I have been offered 17 x 8 fronts but can't get 17 x 9 for the rear so the supplier is offering 18 x 9 instead for the rear, or 17 x 8 all round.

At the moment the van runs 14" 245 50 fronts and 265 50 rears. However I also plan to lower the van about 40-50mm using new springs in the front and blocks in the rear.

My questions.
Any legal implications running 17's on the front and 18's on the back? Tyre wise a 235 45 17 is very similar rolling diameter to 275 40 18 i think.
Anyone done this ?
Will I still get the 265 or 275 tyre under the rear after lowering?
Should I just go 17 x 8 all round?

cheers