Hey guys, Im in the process of ordering some new rims. I thought I could get the offset off another set I have here, but turns out they are 10" wide rather than 12" (16.5"diameter). The 10" wides I have here have the same tire Im planning on mounting on the new rim (39.5 TSL) so to figure my backspace on the 12's can I just add 2" to the offset? Id appreciate any help you guys could offer in steering me towards the right way to figure proper offset on these big tires. Thanks.