OK since I have no idea if 05 hubs will work on 75 granada spindle I'm left using spacers/adapters. From what I've read the desired spacing for 05 gt rim (40mm offset) should be 1.5 inches right? I'm running the explorer 8.8 rearend so the offset should be perfect.(however I'm concerned about the driveline angle) Anyway here's a pic of the test fit.
i think ur right. i had to use a 1" spacer for my 94-04 wheels and the offset is greater for the '05+ cars....