My dad has a 1995 F350 with a 7.3 which has 3 bad injectors. He recently got a complete longblock out of a 99' with about 50k miles on it and to the best of our knowlege all the injectors were good (truck was totaled and he got motor on trade). My question is, will the injectors out of the 99' 7.3 work in his 95? If not what are the differences between the two making them not work. Any input would be appreciated. TIA!