(2) 235/40/18 OR (2) 235/50/18

The different sized front/rear tires on my car are wreaking havoc on my wheel speed sensors and throwing multiple lights, so I’d like to match the existing pair (either front or rear).

Looking for (2) 235/40/18

OR

(2) 235/50/18.

Used and cheap is fine.

PM me if you have something. Thanks!