Does anyone know the size of the bolts on the rear axle that hold the shock absorber? I believe its an M12 x70 mm long??

 

nobody works on their super duties?

 

I've just thrown regular bolts in place of the factory ones. I think 9/16 bolts will work

 

hmm dont think so..9/16 is .56 inches, which is 14.3 mm.
my vernier showed the ID of the bushing hole to be 12.2 mm

 

This would be good info to have. I am getting ready to do all my shocks and the bolts are all nasty and rusty. Time to replace them all while I am down there. I will take them off and take them to a HW store to compare and post the size. This would be for a 2000 F250SD 7.3PSD 4x2

Semper Fi

 

I replaced mine with 1/2" bolts, but I replaced the shock bushings with 1/2" ID bushings at the same time. The new bolts fit the holes in the mounts perfectly, with no drilling or anything.

 

I just replaced my rear shocks and used M12-1.75X80 Class 8.8 Hex Cap Screws. They looked almost identical to the originals (also metric). I also used 12mm washers and nuts. Looks great and fits perfect.
Now for the front ones..ughhh
Hope this helps

Semper Fi

 

Everything on these trucks is Metric. Works well for me since I have been working on my own Honda's for years. Most stuff I have done on my super duty is a 1.5 thread pitch.