steering wheels - '68 Barracuda

My black 68 stock wheel is in decent shape so I'm hanging on to it in case I want to go back. Outside diameter is 16". Pulled it yesterday to get at turn signal switch - tightened up the turn signal lever which was way loose but appears I will still need to replace the switch eventually - it's just worn with a slight wobble in the contacts that makes my right brake light intermittent....your Grant wheel looks great - adapter part # would be excellent to know - thanks for your postings on this .