Manual to auto swap
Here's the confusion. The hole in the crank is STEPPED
The ORIGINAL old school cranks ......depending on the engine..........
the far deep smallest part was the manual pilot. ("WAS") On auto cars sometimes this was not machined full OD OR WAS NOT deep enough
The converter rides in the LARGER hole near the rear of the crank. It is important to note that earlier engines / converters had a SMALLER converter register. (68? and earlier)
Now the confusion is that newer engines (famously Jeep) uses a pilot that sits in the CONVERTER register and does not use the original, smaller pilot hole
This is the newer manual pilot which sits in the CONVERTER bore. These can be had in both roller bearing and "bushing" types
If you USE the newer Jeep style, you won't have to worry that the old pilot is "full size"
In your case, going to an auto, NONE of this is an issue
Here's the confusion. The hole in the crank is STEPPED
The ORIGINAL old school cranks ......depending on the engine..........
the far deep smallest part was the manual pilot. ("WAS") On auto cars sometimes this was not machined full OD OR WAS NOT deep enough
The converter rides in the LARGER hole near the rear of the crank. It is important to note that earlier engines / converters had a SMALLER converter register. (68? and earlier)
Now the confusion is that newer engines (famously Jeep) uses a pilot that sits in the CONVERTER register and does not use the original, smaller pilot hole
This is the newer manual pilot which sits in the CONVERTER bore. These can be had in both roller bearing and "bushing" types
If you USE the newer Jeep style, you won't have to worry that the old pilot is "full size"
In your case, going to an auto, NONE of this is an issue