you will need to do a widebody kit, which one? only you will know what you like. if you look at the tire calculator that dboy posted, you will see that the tire will stick out 52.45 mm further than stock... so yes his post was helpful

 

If you want a professional place for answers go pay someone for their time. If not maybe use the space between your ears and figure it out yourself... Anyone can clearly see I answered your question multiple times... Maybe a link to amazon will help you.

 

This is a group of people helping you out for free, on a very easy problem, for a question that has been asked before.

He spoon fed you the answers.

And you're upset???

Anyway, you still dont need to widen your rear fenders for a 305 or a 315 unless you just plan to lower the car far past functional. proper offset sizing of your wheels is key here and you should be fine. Thats alotta tire though for a street car.

 

The problem is you're wanting people to answer questions that can be figured out easily which 1: Says you're a dreamer 2: You're lazy. Figure it out then when you have somethings you want clarified come back. FFS there is a thread dedicated to fat tires. Start there.

 

Sayonara - don't let the door hit you where the good lord split you