Tire size

["Ed Carbone" <ecarbone@global2000.net>]

Hello all,
     What is the largest 15 inch tire and rim size that I can use on 
my 74' TR6 without modifing fenders.  Any one Know??
 Also, I'm looking for a source of fiberglass fenders for this car. I 
would like to use steel but this car will always be a "driver" and 
would require too much work to approach "original" condition.
tks
Ed C.