Possible alignment issue.
Assuming you mean wear of the edges of the tires, and not the middle, this is an issue of UNDER inflation of the tires.
Can I use 245 70 16 in an 2003 tahoe
NO
Tires need ballanced!!!
If you are driving in 4 wheel drive, put them on the front tires. If you are driving in 2wd ordon'thave 4 wheel drive, put them on the back.
Ford and Chevy parts will not interchange, SORRY
Tires out of balance, Bad tie-rod ends. Steering stablelizer shock, Bent wheel, Belt broken in the tire. Bad idler arm. I would have the front tires balanced first.
maybe bad wheel bearing
It is written in small print on the side of the tire.
look for some on ebay,craigs list or another place
305/22, will fit like a glove,,,,,I bouht my 22's for my 1997 Tahoe used from a 2003
you need to check your motor mounts and the balance of your tires. tires first