i`m trying to put an 8.75 in my 47 desoto. i have a 65 b-body and 69 b-body 8.75" they are both narrower than the rear that came in the desoto. the 69 is only about 1" narrower than the desoto rear. i want to use 15x7 police wheels. with the original rear, wheels and skinny bias ply tires there was only about 1.5" between the tire and frame. i can get a 68 c-body 8.75 which i`m sure is wider than the 69b-body. should i get it and see if it works? what have others used?