If it came from a 70s lincoln it can not be used in a ford or a merc as it has a totally different mount,you can not replace the tailshaft housing easily as the lincoln C-6 has a longer output shaft then the ford and merc C-6s. I bought a 460 and C-6 from a 76 lincoln to put in a 71 country squire and I had the same trans,I had to buy one from a ford to work. Jeff