NOTAV6

iTrader: (3)

picking up some new tires this week or next, I am going to run 315/30/18 toyo r888s on the rear, what size do i need to run on the front to keep the traction control from freaking out

I searched for it but couldnt find exactly what i was looking for, all i could remember was seeing that the rear was supposed to be like .75 to 1.5 inches bigger in diameter than the front but i dont remember if that was right or not

nyg215

iTrader: (5)

275/35/17 or 275/40/17...one of those....i cant remember which i have up front. 315 is pretty big in the back! i thought you can only go up to 305? I have 305/35/18

Red99TA

iTrader: (11)

Looks like those 315/30/18s are actually smaller in diameter than the stockers so you probably would need to go down to a 275/35/17 considering that a 275/40 is actually larger than your stock 265/40

FYRARMS

If you run a 315/30R18 in the rear, you are installing a tire that is .6" shorter than stock. That gives you an overall diameter of 25.5", which is almost the same as your 265/40R17 front tires. Besides looking silly with bigger sidewalls in front, your active handling may get jacked up. You want to keep the front-to-rear height stagger between .75-1.00" or so.

NOTAV6

iTrader: (3)

yeah after i posted up i found some more info on it and im leaning towards 305/35/18 rear and 265/40/17 on the front

websdown

I have 98 Z 275/40/17 front-295/35/18 on rear no problems here.

NOTAV6

iTrader: (3)

corvette is quite a bit different as far as wheels/tires go than f-bodys

i will also prolly need a bit more tire than a 295 cam/spray going on and a blower going on later this year

ysb02

The nitto 555r2s are much cheaper than toyos and come in 305/35/18. I'm running them now and they give great traction once you get a little heat in them.

NOTAV6

iTrader: (3)

its just gonna depend on what i can find for prices im also looking at some 315 35 18s toyo proxes TQ and a front size to match it

mountainbiker2

You don't need a smaller front diameter. You can run a 315/30/18 rear. 275/40/17 front. Toyo R888. The fronts are actually a little bigger. Nothing is going to "freak out". I've been running the same size diameter front and rear for years.

Steve A.

youngrigo

I run 315/30/18 Hoosier DRs in the rear with the stock size 265/40/17 in the front with no problems

SKULL

iTrader: (7)

275/35r17 in the front and 305/30r18 in the back i believe, im getting 11.5 slicks today for the car but my rear tires are shot so ill prolly be picking up a set of 315 for the rear here soon.