I am replacing all the hardware that holds my diff and axles together with new stuff. Went to an are industrial nut and bolt specialty store (the have everything) and got everything I needed, except the bolts that hold my axle flanges together. All the grade 8 bolts available for this application and in that length, were threaded all the way to the cap and either too long or too short. Bummer. Dave at TRF to the rescue. They have the correct high-strength bolts in stock that they source in the UK. They are on the way. Figured it was time to change these babies out, they were only 35 years old.