this is my dads 77 f150 hiboy. just rebuilt the 429ci for it. it has a 4 speed. np205 transfer dana 44 in front and 60s in the rear. 4.10 gears all around. 475 hp and 570 ft tourque. it sat for 9 yrs after we pulled motor to rebuild.never thought we would come across it again. finaly found it had it shipped to us and rebuilt motor new tires. less then a mnth ago. now the yellow bird flys again.