size of wheels are

front: 19x8.5
rear: 19x11.5

is it ok to use the following Pirelli Pzero tires

front 235/35-19 (total diameter 25.4")
OR
front 245/35-19 (total diameter 26")

rear 305/30-19 (total diameter 26.3")

i've done some research but have found some conflicting information.
has anyone run these tires without problems ?.. just don't want premature failure of the differential.

 

Buddy of mine just picked up a set of 245/35 to go with 305/30

Said he did the research and will be fine.

I'd like to hear some opinions too.

 

I just added Hankook evo's at 295 30 19 and 245 35 19. That's as close as I could find with the same tire brands, but the fronts only fit within a millimeter or two.

Read through these posts for all the info:

https://www.6speedonline.com/forums/...o-rubbing.html

 

^^My vote.

Look at the 'revs per mile'..more directly applicable to 'differential abuse'..

the 245 is 800 revs per mile..the 305 is about 790-795 (i am guessing here...tirerack does not have it listed).


A difference of about 10 revs is about ~ 1% (10/800=1/80=1.25%)

 

Be sure and check the diameter of the brand of tire you are looking at. They do differ from brand to brand. The tire calculators are not 100% accurate.