Track width change?

[whitess]

I'm looking into doing a C5 swap on a pair of '01 2WD Blazer spindles with slip on rotors like the C5's. I've got all of the information I need but the final measurements for figuring what the backspacing will need to be with C5 rotors compared to the stock ones. If I'm figuring this right the track width is figured from the faces of the hubs, from one side to the other, so if the thickness of the C5 rotor hat is thicker than one from the Blazer then the track width will increase. Have I got this right?
Thanks,
Larry.

[astroracer]

"Track Width" is measured from the centerline of the tire. What you are dealing with is the wheel mounting face width. This can be very different from (or the same as) the actual track width depending on positive or negative wheel offset and back spacing.
I doubt there will be a large difference between the two rotors, probably not enough to be concerned with.
Mark

[whitess]

Thanks Mark. I wasn't sure if I had asked the question right but it sounds like I got my point across.
Larry.