So now that I’m looking for tires, I’m wondering just how exact the tire size needs to be according to rim size. I understand that 12" rim diameter needs to have a 12" tire and that a 12" tire can be 25", 26", 27" outside diameter. Now, my main question is: I have 25x8x12 rims in the front and 25x11x12 rims in back. Will 27x9x12 tires fit on my front 8×12 rims, and if so, is there a detriment to the fitment because the rims are only 8×12 and not 9×12? And if I go that route, and use the 11x12s in back, will I feel like maybe my front is too high or to low or something?

So now that I’m looking for tires, I’m wondering just how exact the tire size needs to be according to rim size. I understand that 12" rim diameter needs to have a 12" tire and that a 12" tire can be 25", 26", 27" outside diameter. Now, my main question is: I have 25x8x12 rims in the front and 25x11x12 rims in back. Will 27x9x12 tires fit on my front 8×12 rims, and if so, is there a detriment to the fitment because the rims are only 8×12 and not 9×12? And if I go that route, and use the 11x12s in back, will I feel like maybe my front is too high or to low or something?