I want to put my 7R ET49 fuchs into the rear of my 1972 911E.

I currently have standard ET36 fuchs and 195/65/15 Continental Premium Contact 2 tyres front and rear.

I am deciding between 215/60/15 and 205/60/15, I would prefer 215 size.

My car has standard flares and is a little bit lowered vs european height, I do not want to modify the flares.

Did some research and:

A. The 215/60/15 is 0,8% larger and considering also the ET change the edge of the new tyre will be 23mm closer to the inside of the wheel well and suspension components, and 3mm further in from the edge of the bodywork.

B. The 205/60/15 is 1,1% smaller and considering also the ET change the edge of the new tyre will be 18mm closer to the inside of the wheel well and suspension components, and 8mm further in from the edge of the bodywork.

My Porsche mechanics says 215 will work with 7mm spacers.

What are your opinion experience with this change, will 215 work or will it rub with the 7Rs?

thx. Arturo