If you have the companion flange to the pinion flange, you can use these, if they don't put your driveshaft too long. If they do, then just swap to a std 9" pinion yoke. I had to change that too in my Comet swap, the one that came off the Bronco "chunk" had one of the u joint cap "ears" broken off. I just went to a freinds junkyard and swapped it for a better one off another 4wd truck.