I am looking to buy some 19 by 8.5 wheels for the front and I do not know much about wheels so I need your help. What kind of offset do I need on the wheels. The guy I am buying it from says i need 40. I am planning on putting 235/35/19's on it if that helps. I tried searching but couldn't find anything.

 

it dont matter what size the diameter is ie: 16", 17", 18" and so on, the offset will not have an effect on that... for an 8.5 look for something around a 45-50... anything higher will require less modification if none at all, anything lower might require fender rolling or negative camber...

also, u plan on putting a 235 on an 8.5" tire all around??? do u just plan on having this car for looks and looks alone??? i think u need to do some more research... and i think a 235/30 would be the correct choice...

 

This all depends on if any mods have been done to the fender ie:
roll, pull, trim, cut etc etc.

If these have not been done, you will rub, of course this depending on your height

 

I am on stock suspension and springs. The rear wheel is a 19 by 10. Planning on going 275/30/19 on the rear and 235/35/19 on the front. I haven't gotten anything done to my fenders. So does that mean the 40mm offset is too big? Thanks for your help

 

no 40mm offset is too small.

Wheel Fitment Guide
https://www.s2ki.com/forums/index.php?showtopic=342793

It says a 58 but you could get away with a +55mm offset without having to modify anything.

"235 tires: +58 offset minimum (7.5

 

+40 is way to low, that is if you do not have any of the proper fender mods.

If you want to keep your fenders untampered and run tire sizes that big, you have have to ante up the offset to +65 and up.