Low Dogg
Member
I need to know if there is a difference between Spec 64A and Spec 46A. I know the 64A is listed for 96-04 mustangs and the 46A is listed for 05-up. American Muslce web site says they are the same......Why would Spec have too different part numbers for the same part? Which makes me believe they are not the same. I have seen a 64A that has a counter weight bolted on the back and have seen a 46A with with no counter weight. That is the only visual differance that i have seen. Can you unbolt the counter weight on a 64A and use it on 05-up? Tried searching found nothing on this. Thanks in advance for any help.