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what is the backspacing/offset on the wheel? assume et40 means 40mm backspace/offset? I know guys put 10.5" wide rears Z06 wheels on the front with up to 295/30/18" tires, they stick out a little but fit. Z06 front 17x9.5-54mm,rear 18x10.5-58mm offset. With a 10" wide wheel and a 40mm offset in the front you will stick out quite a bit, the offset alone is 18mm lower (outword) then a the rear C5Z and 14mm Lower then a C5Z front. someone with 19's will chime in but to me it looks like it will stick out quite a bit.
Last edited by RedZMonte; Nov 22, 2013 at 02:33 PM.
CCW offers a few options but i dont know the offset on the front. so i know the size works just not the offsets.
c5 setup is 19x10 front and 19x11 rear with either 275-30-19 fr/295-35-19 rear or 275-30-19 fr/305-30-19 rear tire
with a 79mm offset and a 25mm spacer you will get a stock 54mm front offset but keep in mind the wheel is wider and taller. Look at CCW, HRE, Iforge and see what offsets they offer for a front 19" wheel on a C5. any chance you can get away without adaptors/spacers is the best way to do it.
Found this post. guy running 19x10-40mm and 20x12-57mm GS wheels.. might contact these guys, they have them on a C5.. i have never installed that size on my car so I am not an expert just trying to be helpfull. http://forums.corvetteforum.com/c5-p...gs-wheels.html
Trying to keep the brand and whatnot hush hush until I unveil my widebody c5 to the community but I did end up with 19x9.5 and 20x12.5.... 90 days and counting