Does anyone know what the bolt circle is for the flange that holds the rear axle and brake backing plate onto the housing?

I am going to build my own SST 09521-25011 for replacing rear axle bearings, but I would like to have it mostly done before making the truck undrivable. I just don't know what the bolt circle is for the end that bolts onto the backing plate.

TIA.

 

If I remember I can measure in the Morning if no one else has the answer till then!!!

 

That would be much appreciated.

I think I have a nice round number, but would like to compare it against something.

 

Bueller?

 

Nevermind, measured it myself.