My friend and I are trying to figure out what the difference is. I googled it to see if their was a difference in body style and it doesn't look like it. but I could be wrong. any help would be appreciated.
Easy,the 1964 mustang doesn't exist. The mustang came out late in the 64 model year so most 1st production year mustangs are either considered 64 1/2's or just grouped in w/ the 65 model year mustangs since they had made a few minor modifications by then
I think you are talking about differences between a 1965 and 1964 1/2 Mustang.
So the difference between them are:
Generator vs Alternator
5 bolt bellhousing vs 6 bolt
Hood is a little different
Horse grill is a little different
Headlight bucket is a little different
Door lock pin is a little different
Heater fan switch is different
Gas cap does not have retaining cable.
Horns are a little different