Hey Ryan try ATP, here is there website, they are the MFG for quite a few cables. They may be able to custom make you one. 63" sounds pretty much the same length as what we put in dads 67 cuda. We discovered them as we orig ordered from Rock Auto...cheap $11 for the cable. Well when we got the cable it was in ATP packaging and it was wrong length. Called ATP and informed them....eventually we got it fingered out. Guy I dealt with on the phone from ATP was great....wish I could say the same for Rock Auto...good luck! And great work, that is an awesome blue!! Ooops here is the link