Lost the pony motor main bearing dowel (2A3435) despite best efforts not to and want to make one on the lathe. Thinking of tapering it but think a straight .250" on lathe with small hed and center hole should suffice..
.turned my own bearing from round stock and it was a knock in with a hammer deal .. doesn't seem like it will ever move but with heat and vibration ill loctite in a dowel pin too..

What was the original deal was it an interference fit or taper design? 

 

They are still available from Caterpillar

Regards