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what year toronados have the correct final drive long output shaft? [message #309147]

Fri, 21 October 2016 14:12

Messages: 1262
Registered: September 2009

Karma: 0

Senior Member

I have a good 3.07 final drive, but don't have the long output shaft/hanger for it so am looking for one. I've read that the 68-78 Toronados have the correct shaft, and that it doesn't matter if it's from a 3.07 or 2.73 final drive. I know the Eldorado shaft will fit, but the hanger is the wrong shape.

Do later Toronados use the same shaft/hanger? I'd like to broaden my search as much as possible.

thanks,
Karen
1975 26'

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Re: what year toronados have the correct final drive long output shaft? [message #309169 is a reply to message #309147]

Fri, 21 October 2016 20:28

John Sharpe

Messages: 71
Registered: February 2006
Location: Porter, TX

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The Toronado and motorhome use the same right hand shaft and hanger bracket. Not to be confused with the CV shaft (The shaft with the joints on each end.), as it is longer on the motorhome than the Tornado.

John Sharpe
Porter, TX
78 Eleganza II, TBI
40 Ford Panel, TPI

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Re: what year toronados have the correct final drive long output shaft? [message #309170 is a reply to message #309169]

Fri, 21 October 2016 21:04

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

John Sharpe wrote on Fri, 21 October 2016 20:28

The Toronado and motorhome use the same right hand shaft and hanger bracket. Not to be confused with the CV shaft (The shaft with the joints on each end.), as it is longer on the motorhome than the Tornado.

The 66' and 67' Toro/Eldo and (IIRC) the 68' eldo used the 3.21 FD. The shafts are different diameter, different spline and while the hanger is the same, they have a different hanger bearing than the later 3.07 and 2.73 shafts. NOT interchangeable. Pretty sure of this. John B??? correct me if I am wrong.

Larry

78 Royale w/500 Caddy
Menomonie, WI.

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Re: what year toronados have the correct final drive long output shaft? [message #309173 is a reply to message #309170]

Fri, 21 October 2016 21:23

Messages: 1262
Registered: September 2009

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Senior Member

I've installed both the 3.21 and a 3.07, and pulled a 3.07 from a junkyard Eldorado, so am familiar with them.
The 3.21 is 66/67; I believe by 68 they'd probably gone to a 2.73 or 3.07.

What I'm trying to figure out is what year Toronados had a 2.73 or 3.07 final drive so I can get the long output shaft and hanger?
I'm reasonably sure 68-78 will work, but it's getting harder and harder to find ones this old. If there are later model years with the correct shaft, it would greatly expand the selection.

thanks,
Karen
1975 26'

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Re: what year toronados have the correct final drive long output shaft? [message #309175 is a reply to message #309173]

Fri, 21 October 2016 21:46

Messages: 1262
Registered: September 2009

Karma: 0

Senior Member

While trying to figure this out, I stumbled upon an interesting Toronado site that has a significant piece about the motorhome in it:
http://ateupwithmotor.com/model-histories/oldsmobile-toronado-gmc-motorhome/view-all/

Anyway, it appears that about 1979 they went to a 350 engine and a TH325 tranny. Still don't know what final drive the
later ones used, but I suspect the major engine change may have resulted in a modified output shaft bracket.

thanks,
Karen
1975 26'

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Re: [GMCnet] what year toronados have the correct final drive long output shaft? [message #309176 is a reply to message #309173]

Fri, 21 October 2016 21:58

Kosier

Messages: 834
Registered: February 2008

Karma: 1

Senior Member

You've got it correct. 68-78 Toro is the only direct fit. Either gear
ratio.

Gary Kosier
77PB w/500Cad
Newark, Ohio

--------------------------------------------------
From: "KB"
Sent: Friday, October 21, 2016 10:23 PM
To:
Subject: Re: [GMCnet] what year toronados have the correct final drive long
output shaft?

> I've installed both the 3.21 and a 3.07, and pulled a 3.07 from a junkyard
> Eldorado, so am familiar with them.
> The 3.21 is 66/67; I believe by 68 they'd probably gone to a 2.73 or 3.07.
>
> What I'm trying to figure out is what year Toronados had a 2.73 or 3.07
> final drive so I can get the long output shaft and hanger?
> I'm reasonably sure 68-78 will work, but it's getting harder and harder to
> find ones this old. If there are later model years with the correct
> shaft,
> it would greatly expand the selection.
>
>
> thanks,
> Karen
> 1975 26'
>
>
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> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

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Re: [GMCnet] what year toronados have the correct final drive long output shaft? [message #309200 is a reply to message #309176]

Sat, 22 October 2016 19:29

Messages: 1262
Registered: September 2009

Karma: 0

Senior Member

Kosier wrote on Fri, 21 October 2016 19:58

You've got it correct. 68-78 Toro is the only direct fit. Either gear
ratio.

Thanks Gary.

Karen
1975 26'

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