will it fit?

do 17/35/315 or 17/40/275 fit in the front on a 17x 9.5"? how about 335/18/30 or 305/18/35 on a 18x 10.5"?
on a 95 z28
thanks

the 275/40/17 will fit the front on that wheel

the rears are kinda pushing it with those sizes. most opt to stick with something in the 295 width

A 335/30-18 requires a 12" wide wheel, and the tire would likely rub heavilly on the inside fender.

As far as the 305/30-18 what is the offset on the 18x10.5" wheel? If they are the C5/Z06 wheels, is probably large enough offset to cause problems with the inner fenders, even with a narrow tire. The 305/30-18 is not generally available in 'street' tires, only in 'competition' tires. There is a 315/30-18 that would fit on a 10.5" wide wheel, but with too much offset on the wheel, its going to rub.

its the z06 with 58mm offset would i be better off having it 30 or 35? and are there any nitto dr's that are 315/30/18? i only found 315/35/18...?