well i had a blowout and im looking to replace two tires. The tires i have now are 235/35-19. i would really like something a little taller and wider. soo im thinking about going with 245/35-19 and puting them on the rear and leaving 235/35-19 on the front. the only thing is that the ones im going to leave on the front will probably need to be rotated to the rear after awhile. will you be able to tell much of a difference if i were to have 245/35 on the front and 235/35 on the rear after i rotate them? or should i save myself the trouble and just get 2 more 235/35-19's and put them on the front to begin with??

245/35/19 is the correct size for proper plus sizing. I guess you could buy that and run the 235/35's you currently have too. Rotating should be alright I think.