I need some help with a R-200 install

[beandip]

Nothing major , I am swaping out the 180 and going with the R-200 . The trouble I am having is the studs that are in the back of the diff. that bolt to the moustash bar are larger than the 180s that I had planned to use. WHAT SIZE ARE THE NUTS ?? I know the thread size is 1.5 but I need to know what the size is . I miked the stud and they are .510 in dia. accross the threads . Is it a 13 mm or 12mm? Thanks Gary

[V8-240Z]

Gary.

the studs are a 12mm but I think they are 1.25 thread pitch.

The spindle pin puller is a 12X1.25mm see if that will easily

thread on to the studs.