I have on 05 Envoy that I put larger tires on. Did I make the right changes?

Original Tire Size 245/65R17 29.53 in
New Tire Size 255/75R17 32.05in

For some reason there is no auto calculation so it has to be done manually.

Stock Settings
General VSS Pulses per Mile 104928
VSS Trasn Revs Per Mile 2623.2418
Final Drive Ratio
Drive Sprocket Rattio 1.000:1
Trans Revolutions/Mile 2637.5972

Now when I make changes everything seems to work except my cruise control. Here are my existing settings

New Settings
General VSS Pulses per Mile 96680
VSS Trasn Revs Per Mile 2420.3902
Final Drive Ratio
Drive Sprocket Rattio 1.000:1
Trans Revolutions/Mile 2420.3902

Any help would be appreciated,

Kane