saginaw 4 speed transmission

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saginaw 4 speed transmission

Postby robson » Thu Aug 18, 2016 4:09 pm

Can anyone tell me if a Saginaw torque tube housing will attach to a non-torque Saginaw 4 speed transmission? I have a Saginaw torque tube I want to put it on a Saginaw that came with the standard tail housing I need this info asap. Thanks all, Charles.
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Re: saginaw 4 speed transmission

Postby cjbiagi » Thu Aug 18, 2016 4:32 pm

I am reasonably sure the tailshaft will swap on between torque arm transmissions and non torque arm ones.
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Re: saginaw 4 speed transmission

Postby spencerforhire » Thu Aug 18, 2016 5:48 pm

If you don't have the correct h-body tailshaft housing, it's not all that difficult to fabricate a bracket that will attach the torque arm to the trans crossmember.
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Re: saginaw 4 speed transmission

Postby robson » Thu Aug 18, 2016 6:40 pm

Thanks to all about the torque tube changeover on my Saginaw.
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Re: saginaw 4 speed transmission

Postby ricrx7 » Sun Jan 08, 2017 4:53 pm

I have a Chevette 4 speed Saginaw transmission. Is this the same as a Saginaw 4 speed in an H body? Thanks.
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Re: saginaw 4 speed transmission

Postby Monza Harry » Sun Jan 08, 2017 7:32 pm

The "Saginaw" 4 speed was used in many GM cars including H-Bodies and the Chevette. Now the most notable differences would be if your H-Body is an 1975 or newer Monza/Skyhawk/Sunbird/Starfire, a "Cosworth" or 1976/77 Vega/Astre as these would all need an H-Body specific tail shaft housing for the easiest torque arm hook-up, the earlier Vega/Astre's won't need that, and then there were a "S :censored: T Load" of gear ratio's available as identified by input shaft "rings" to identify the first gear ratio, the correct one will reduce the chance of breakage, slightly! Now outside of these two considerations they bolt into nearly any Rear drive GM from the mid eighties back with the correct bell housing and that is another discussion. Harry :th:
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Re: saginaw 4 speed transmission

Postby ricrx7 » Tue Jan 10, 2017 11:18 pm

The pictures I have seen of the H body Saginaw 4 speed have external shifting. My Chevette Saginaw 4 speed has internal linkage. ????
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Re: saginaw 4 speed transmission

Postby spencerforhire » Wed Jan 11, 2017 12:12 pm

Wouldn't a 4-speed from a Chevette be the same Opel sourced trans that was in some early Vegas?
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Re: saginaw 4 speed transmission

Postby cjbiagi » Wed Jan 11, 2017 12:54 pm

All Saginaws had external linkage. All of the shift forks are located on the side cover vs other transmissions that had reverse on the tailshaft
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Re: saginaw 4 speed transmission

Postby spencerforhire » Wed Jan 11, 2017 9:36 pm

My thoughts exactly; how can it be a Saginaw if it has internal linkage?
The "fleet"-
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
03 Silverado 2WD ex.cab (work truck/parts hauler)
04 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
93 Suburban- 350/4L60(retired)
00 Saturn SW2- wife's car
01 Saturn SC2- younger son's project
00 Saturn SL2- daughter's car
98 Saturn SW2- spare
and 3 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....

Visit http://www.spencerforhire.ca
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Re: saginaw 4 speed transmission

Postby cosvega76 » Thu Jan 12, 2017 9:20 am

There was a "70 mm" trans (distance of the centerline of the mainshaft to the counter) used on the Chevette that had an internal linkage. Very light duty, the 1.6L probably stressed it.


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Re: saginaw 4 speed transmission

Postby ricrx7 » Fri Jan 13, 2017 11:01 am

Thanks - looks like it is a boat anchor
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