727 Torqueflite Input Shaft

[tyallis]

Got a rebuilt trans to toss behind the 440 going into my '66 Coronet. I was giving it a closer look before I bolt it up, and ran across something that may be a bit of a concern? It looks like there was an incorrect torque converter installed in the past, that may have been spinning, and wore a groove on the splines of the input shaft? What do you think? Pic 1 is from trans in question, and Pic 2 is from another parts unit that's laying around. Thanks in advance!

 

[khryslerkid]

You're talking about where the red arrow is?
I'm thinking it shouldn't hurt anything. Looks factory to me, maybe to hold a clip that would be in the converter, if there would be one. See what the experts say...

 

[tyallis]

You're talking about where the red arrow is?
I'm thinking it shouldn't hurt anything. Looks factory to me, maybe to hold a clip that would be in the converter, if there would be one. See what the experts say...
View attachment 386456

Yeah; that's what I was referring to anyway. Just noticed it with the 2 shafts side-by-side... Look forward to the experts giving their blessing! Thanks

 

[khryslerkid]

Found this about hd input shaft. Don't know if its the same?
http://www.nuttyprofessortrans.co.uk/html/input_shaft.html

 

[tyallis]

Found this about hd input shaft. Don't know if its the same?
http://www.nuttyprofessortrans.co.uk/html/input_shaft.html

Correct. Both input shafts that I posted are 24 spline and the reaction shaft's (I think that's the right term) are 27 spline.

 

[tyallis]

Found this about hd input shaft. Don't know if its the same?
http://www.nuttyprofessortrans.co.uk/html/input_shaft.html

D'oh! I now see what you mean with the HD input shaft. Could be... Nice find! Thanks again.

 

[RT K_line]

I can see the marks you are talking about but I don't see anything that should be an issue. It should be fine to use as is. JMO

 

[PurpleBeeper]

Unless your North of 700hp I wouldn't give it a second thought.