Friend Chuck completet this swap into his 1974 401 Javelin . Nothing but Rave Reviews - he scored a 'Gold Top' for $450.00 from a '91 Cobra . I entered some of the Info in to the Archives on this swap - any further questions - I do have the list of parts you'll need straight to the gear for the Speedo. As for the swap to the Gremmie - the Bell Housing from a Standard Trans EAGLE will do it for you. Brien. 'milners-coupe'