I'm getting everything together to replace a dead VP. I bought a small T style steering wheel puller that should work to pop the gear off. I want to make sure I have the right bolts to thread into the gear. Any help is appreciated!

 

M8-1.25, mine came in the kit with the puller.

 

Thank You!

 

I did mine last night and I was told by the cummins mechanic at Southeastern power systems that I didnt need a puller. Just loosen the main 4 bolts and the bracket at the bottem and loosen the pully bolt some and tap on the 27mm nut with a ball pin hammer and it pops right off. Mine did with no problem.
Good luck

 

That would work but theres only like 4 inches of room between the shaft and the fan shroud

 

Yeah but the four inches was enough to get it done. You dont have to tap very hard.

 

Another great tip, I'll give it a shot.