Any difference between auto and manual trans cranks?

[plovett]

Are auto and manual trans crankshafts completely interchangeable?  Is there any difference on the back side of them?

thanks,

paulie

[ntheogen]

Exactly the same

[GJCAT427]

On FE`s no difference. The 460s there was a difference. You had to check them.

[plovett]

I wonder why the guy who machined my 391 crank wanted to know what transmission it was going to be used with?  I told him C6, but I am thinking about converting to a toploader.

paulie

[blykins]

Because a 391 crank is a different animal....and if you use a manual trans with a pilot bushing, then a special pilot bushing adapter needs to be machined and installed. 

[plovett]

Because a 391 crank is a different animal....and if you use a manual trans with a pilot bushing, then a special pilot bushing adapter needs to be machined and installed.

Thanks Brent.  I guess should have mentioned that it was  391 crank in the first place.  Is the bushing adapter something that can be made without having the actual crankshaft in hand?

paulie

[blykins]

Adney has them in stock.  I know because he just ground a 391 crank for me and provided the adapter.

[plovett]

Thanks!

[1967 XR7 GT]

   

   PM Sent