Hi, Just sharing some info, maybe someone will find it valuable. Wheels are 10" wide with +10mm offset. With 56mm adapter I will have 3/4" of clearance to 2,5" exhaust. With some tweaking to exhaust this wheelhousing could accommodate 345 on 12" rim. Front wheels will be same rims but with 295/40-18. Peace Kacper.
That is great information, but most do not understand the difference between offset and back spacing, and mixing Metric and English measurements will confuse the issue more. A 10" rim is actually 11" edge to edge. 0 offset would be 5 1/2" back spacing. +10mm is less than 1/2", so you are looking at almost 6" of back space.
And with adapter which is 56mm aka 2.2" and was necessary to change bolt circle i am at theoretical 3,8" of back space. Thanks for pointing that out. Peace Kacper.