Vredestein Sessanta tires come in 275/40/18 ......I need to change my rears and the only size the offer is 275/35/18 ............I know sidewall hight differs from company to company......can any one give me some insight.

Currently have Potenza re050a

 

bump

 

why don't you email or call them and ask them that question since they are the only ones that can give you the proper answer?