Will it be okay to replace my 2004 Chevy Venture tires with 215/70-15 tires instead of the stock 215/75-15 tires? Thanks

According to tirerack.com, 215/70-15 is the OEM tire size for your vehicle, unless your owners manual says something different, all should be good with that size.

2004 Bonne SLE
1971 Chevelle SS

Door sticker on mine says 215/70R15.

as long as they are all the same size it doesnt make much difference

There will be a slight difference in circumference of the tire which will have a slight effect on the speedometer reading....the larger tire will create a slightly slower speedometer reading....so whenever you do the speed limit, it will actually be higher than you are actually going.......but the difference will not be that much at all....