I am looking at a set of riken mesh wheels for my 87GN. They are 16 x 9.5 with 4 3/4 back spacing. Just not sure this will fit the front with out hitting ? Not sure about the offset . The front rim has a 255/50/16 on it and the back has 315/40/16. Just need so help on this before ,I drive 3 hrs to go look at these rims , Any help would be great thanks.