anybody thaught of putting 4 lug spendles and rotors from a thunderbird or mustang to get bigger brakes? before i head to the junkyard and find out 4hours later it was a bad idea trying to fab these on can any body give me reason to not try?

Are you speaking of front or rear brakes? And what year?  The 80's Thunderbirds had struts on the front so there is no spindles (between two A-arms) to be adaptable.  The rears might be a different story but with all the Turbo Coupes being used I have never heard anyone mention the brake adaptation. So..., maybe...., but I'm thinking probably not.

Thought about doing the same thing some years ago.  From poor memory, they both use the same bearings but different seals.  The later hub bearings are closer together than the Pinto (seems like it should be the other way for the heavier car).  Thought about adding a spacer (maybe a second bearing race, if right dimension) under the inner race to get more distance between the bearings, but did not follow through.  Did not check on the rotor location or caliper/seal adaption.  It is not a direct bolt on but might be adaptable.