Tires: 4x4 with different size tires, grand cherokee laredo, size tires

Question
I had a spare on my 93 grand cherokee laredo. I had 215/75/15 on the fronts and i had one 235/75/15 on the rear. I had no problems for two months i drove with the spare. I recently put another 235 in the back so i now have two 215's up front and two 235's in the back. It makes a lot of noise from the front now. Should i put on one of 235's on the front or is it no difference?

Answer
Barry,

You may have ruined your drivetrian.  But just in the off chance you haven't, all 4 tires need to be identical in every way - including wear.  I suggest you get there as soon as possible.

In the meantime, put one of the 235's on the front.