So this all turned out great in the end.... The wheel i tried on was the spare which was the same size but different offset... 15 x 7 with 0 offset
Before I took to it with a grinder, or before I went out to get new wheels.. I thought i better try one of the actual wheels off my other truck..... on they went with no space issues at all... turns out the 15 x 7 with -15 was PERFECT fit and i had a nice 5mm gap between the wheels face and the caliper.
Stoked !!
