Wheel and tire sizes. help??
 

Im lowering my 72 sub 3-5 the way it looks. im thinking 20x8.5 front and 20x10 in rear. Can anybody give me a hand?? Will they fit with correct offset. like 5.5 backspace on 10's and 4.75 backspace on 8.5???? possibly a 29" tall tire give or take. thanks any help will be appreciated. also any pics you have of yours would be awesome with wheel/tire size and drop?? Thanks.