A833 23-spline tranny and drivetrain vibration - culprit found, need help

[747mopar]

Don't go too long with that slip yoke or the new bushing will be junk.

Agreed, I'd be swapping that yoke soon.

 

[moparedtn]

Your the only hell your momma ever raised!

When someone calls me sir, I tell them "that was my dad's name".

Nice to hear you're on the road again. You got a grip on her now

Thanky kindly, sir.

 

[moparedtn]

Don't go too long with that slip yoke or the new bushing will be junk.

I plan to....soon as I figure out which one I have.
Apparently there's a bunch of 'em?

 

[moparedtn]

Agreed, I'd be swapping that yoke soon.

Yep. My driveshaft probably isn't even the "right" one for the car, but it fits perfectly.
It's the type with the "donut" on the front end, right behind the u-joint saddle.
Wonder which yoke I have? 23 spline 4 speed, so I assume 30 spline output on the tranny?

 

[Beekeeper]

This may help
http://www.dennysdriveshaft.com/c73_dodge.html

 

[Beekeeper]

Ed, this more than likely the one you need but your gonna have to do some measuring to be sure.
http://www.dennysdriveshaft.com/p84_727_auto__a833_manual_7290_series_slip_yoke_dodge_30_spline.html

 

[moparedtn]

Almost forgot.
Answer to "where does the oil hole go?":
At least in my case, the lube port in the extension housing is at about the 4:30 position, as you look at the butt of the tranny, so we lined up the hole in the bushing with that.

 

[moparedtn]

Ed, this more than likely the one you need but your gonna have to do some measuring to be sure.
http://www.dennysdriveshaft.com/p84_727_auto__a833_manual_7290_series_slip_yoke_dodge_30_spline.html

I got under there and put a tape measure on the thing this evening, checking the u-joint cap and it looks pretty close to 1.25" (!).

It has the "donut" up front like this one:

Out to out on the u-joint flange is close to 3".
Wonder what this was originally out of?

 

[moparedtn]

Thanks to everyone who helped. One step closer to the goal here now!

 

[Fran Blacker]

Ed did I miss something, all I saw was a drive shaft on the floor?

 

[moparedtn]

Ed did I miss something, all I saw was a drive shaft on the floor?

Depends on what you were looking for.
The driveshaft shows the "inertia ring" that mine has as well.
As I've asked here (and on another thread), is it supposed to be in this car?
Is it a good thing to have?

 

[Fran Blacker]

Ed maybe I missed something on other thread? I don't know when for sure they stopped inertia rings. My 66 has one and I have a 68 driveshaft with out one. Waiting to see how bushing replacement goes.
I have one to do.

 

[Beekeeper]

i think that type of shaft was used in the 70 v code cars

 

[moparedtn]

i think that type of shaft was used in the 70 v code cars

Man, I've searched for a while online for a reference source for driveshafts in these cars and found absolutely nothing.
Might be something for the Mopar Muscle guys to tackle?

 

[moparedtn]

Ed maybe I missed something on other thread? I don't know when for sure they stopped inertia rings. My 66 has one and I have a 68 driveshaft with out one. Waiting to see how bushing replacement goes.
I have one to do.

It's funny you say that - there's a slight possibility this one may have come from a '65. Several other (wrong) parts I've since replaced on the car have so far, I've discovered.


UPDATE 7/31/17: As noted on other threads, it turns out the inertia type driveshaft is indeed correct for my '68 GTX. The tailshaft bushing replacement on my 4 speed went great, thanks to BeeKeepers' help!
The GTX is now perfectly driveable.