My merc dist has a .425 shaft which the standard gear doesn't fit. Has anyone run across this before?? If you have what part # is it and can you get from GM.

You sure you got the shaft diameter right? These are the sizes that are listed at Summit Racing.

Distributor Shaft Diameter:
0.500 in., 0.491 in., 0.467 in., 0.531 in., 0.490 in., 0.484 in., 0.530 in., 0.427 in., 0.489 in., 0.468 in., 0.466 in.

It is the .427 gear. Some BBC and SBC and V-6 apps. I need to find out if they have a melonized gear this size.

The GM part# is 19052845 and it is a hardened (melonized ) gear. GM sends what they have to Merc and this happened to be what was put in mine. It is the small cap,external coil HEI dist.

Jim Pace has it. I need to order one for Bill. Let me know if you want me to get one for you.
Eddie

http://paceperformance.com/index.asp...D&ProdID=72159

They are available also for in LH and RH rotatation.

SH*T!!!!!!!!!!! I hope I got the right one!