Manual Trans Crank?

[Driven]

Was wondering if anyone knows the correct pilot bushing hole size for a crank that is drilled for a manual tranny. I have heard that some holes are not fully drilled. Want to make sure the hole is drilled correctly before installing the motor. I know you can cut the shaft on your tranny and install a bearing but the tranny is original to the car so I dont want to cut it.
Thanks.

 

[67 B-body]

I believe you'll know by looking at the crank itself. Mine is a manual tranny crank and it is a NON tapered hole that the bushing fits into. I believe the NON manual trans cranks have a tapered hole. Also, you could just go get a pilot bushing and measure it to compare to the crank.....

 

[Driven]

I think just knowing that one is tapered and one is not will let me figure it out until I pick up a bushing to measure it.
Thanks!!!!!!!!!!!!!!!

 

[HitIt]

I'm not sure about the tapered hole comment above. Generally the automatic crank is just not finish drilled which means the pilot bushing hole not as deep and just slightly undersized. The reason people cut the input shaft is because the automatic hole isn't deep enough. However there was so much variance back then- and so many engines available- some auto cranks were drilled deep enough but just not finish drilled for the brass bushing.

Standard replacement pilot bushing, for original 4-speed crankshafts is .940 outside diameter. The depth of the hole should be 1.125" if finish drilled.

There is an adapter bushing (balkamp BK615-1033) that is slightly undersized in diameter to fit inside the unfinished hole, but you'll still need to deal with the depth of the pilot hole if it's too shallow. I'm not sure of the diameter of this piece, but it is said to fit a .904 hole.

Can you tell I've gone through this? Let me know if I can help further.

 

[Meep-Meep]

I'm not sure about the tapered hole comment above. Generally the automatic crank is just not finish drilled which means the pilot bushing hole not as deep and just slightly undersized. The reason people cut the input shaft is because the automatic hole isn't deep enough. However there was so much variance back then- and so many engines available- some auto cranks were drilled deep enough but just not finish drilled for the brass bushing.

Standard replacement pilot bushing, for original 4-speed crankshafts is .940 outside diameter. The depth of the hole should be 1.125" if finish drilled.

There is an adapter bushing (balkamp BK615-1033) that is slightly undersized in diameter to fit inside the unfinished hole, but you'll still need to deal with the depth of the pilot hole if it's too shallow. I'm not sure of the diameter of this piece, but it is said to fit a .904 hole.

Can you tell I've gone through this? Let me know if I can help further.

What you said.....

I have put a crank in a lathe and finish drilled the hole myself. Just be careful not to drill through the cross drill in the rear journal otherwise you will have a pressure fed oiling to the pilot bushing.