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833 input shaft looseness... #950273 03/13/11 09:59 PM 03/13/11 09:59 PM
Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland 440newport OP master
440newport OP master Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland	Might be a dumb question, but how "loose" should a 833 input shaft be out of the car? I know it's only supported on one end, but mine can wobble around pretty good, if it didn't hit the insides of the bearing retainer it could move around a lot more. Could the bearing be bad? Turning it over by hand all seems smooth but I guess that doesn't proove much. I was gonna run it in a car as-is, but now I'm thinking about having it checked out, or maybe rebuilding it myself.

Re: 833 input shaft looseness... [Re: 440newport] #950274 03/13/11 10:04 PM 03/13/11 10:04 PM
Joined: Nov 2007 Posts: 21,822 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,822 Kirkland, Washington	My 18 spline was pretty loose too.

Re: 833 input shaft looseness... [Re: 440newport] #950275 03/13/11 10:42 PM 03/13/11 10:42 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	The one in my 1st Mopar, a '68 GTX 440/4sp/4.10 dana convertible had side play at the end of the input shaft you could measure in 1/16"ths & dont remem any related noise from that area but it was loud live every 24 hour block of time like it's your last day on earth

Re: 833 input shaft looseness... [Re: 440newport] #950276 03/13/11 10:57 PM 03/13/11 10:57 PM
Joined: Dec 2006 Posts: 602 N.E.Ohio P pacifica mopar
pacifica mopar P Joined: Dec 2006 Posts: 602 N.E.Ohio	The couple I have seen were loose also. If yours is hitting the bearing retainer, I think that is too loose.

Re: 833 input shaft looseness... [Re: pacifica] #950277 03/13/11 11:41 PM 03/13/11 11:41 PM
Joined: Oct 2005 Posts: 8,871 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,871 Ontario, Canada	They're always pretty loose. Keep in mind that you're seeing movement at the end of a shaft that is about 10" away from the bearing. The movement at the bearing is minimal. That slight movement at the bearing is enough to tolerate factory bellhousing alignment (or mis-alignment) tolerances without smokin' the tranny.

Re: 833 input shaft looseness... [Re: Stanton] #950278 03/14/11 02:59 AM 03/14/11 02:59 AM
Joined: Oct 2010 Posts: 606 Montana Y Yancy Derringer mopar
Yancy Derringer mopar Y Joined: Oct 2010 Posts: 606 Montana	Quote: They're always pretty loose. Keep in mind that you're seeing movement at the end of a shaft that is about 10" away from the bearing. The movement at the bearing is minimal. That slight movement at the bearing is enough to tolerate factory bellhousing alignment (or mis-alignment) tolerances without smokin' the tranny. Exactly. Both the input shaft and manshaft are supported in only one place, and the nose of the main fits into the rear of the input, which acts like a lever. In other words, if you wiggle the input, you'd see the rear of the mainshaft move. When it's all installed, it's all good.

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