1965 Barracuda speedometer confusion

I was trying but it's packed in tightly and I didn't want to damage it by hammering it on a vice. Another forum had a reference to Imperial Services and I contacted someone there Steven [email protected] who confirmed that most websites show the wrong part (and price unfortunately) so it looks like unless someone responds in the Wanted forum I will have to fork out $150 #moparproblems

So in the Wanted forum someone mentioned trying this for $8 SPEEDOMETER CABLE MAKE UP KIT Automotive Repair Universal Vehicle Fixture Parts | eBay
Worth a shot to maybe save the $140. I'll report back whether I can make it work.