The chrome thumb rest part of my 70s Dodge pickup just spins and it causes issues with getting the key inserted, unless it's aligned just right.

I have ordered a new ignition tumbler but would like to keep the key I have now since it matches the door. Is it reasonable for me to be able to DIY that? Any other recommendations?


72 Challenger - will be sublime, little 340 904, 8 3/4" - Under Construction