Try: http://www.tirerack.com/
Yes they do fit.
== == == == the 2007 probably has a different offset than the 1997. == ==
No they do not fit not without some kind of mod.
No they will not fit, Tahoe is 6 lug and navigator is 5 lug.
Yes
NO
No thay will not, ford and Chevy are different.
Yes they would
yes, but it would look very stupid.
YES, They will fit with no problems.
yes
Yes it will.