I find his and hers shifters for turbo 400 trannies in GTO's but no firebirds. Are these available or will the GTO shifters fit? Thanks.

Hi
A after market Hurst Duel Gate shifter does exists, but only for the 1968-1969 Floor console. the name of the business is The Parts Place. copie the link address.
https://www.thepartsplaceinc.com/pr...plate-with-indicator-setup-backlit/59358

Hope this helps out.