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Old 11-26-2010, 10:31 PM
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4 Speed what is it

Does anyone know what this tranny is , i am looking at maybe putting it behind 375 horse SBC and a 3200 LB car, car is now a 350/350 auto, dont know alot about standard trannys, oh ya it has 3 rings on the input shaft

Jim
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Last edited by dieseldust; 11-26-2010 at 10:52 PM. Reason: adding info
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Old 11-26-2010, 10:51 PM
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It's a Saganaw 4 speed. Is that bracket welded to the top of the tail housing?
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Old 11-27-2010, 12:09 AM
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saginaw 4-speed, don't expect it to live long if you beat on it alot.
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Old 11-27-2010, 02:23 AM
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Quote:
Originally Posted by ericnova72
saginaw 4-speed, don't expect it to live long if you beat on it alot.
yea it will survive if your nice to it. If you want to have something a LITTLE more forgiving try finding a M-22. but then again those are like gold now a days.
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Old 11-27-2010, 10:27 AM
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4sp install

What ever you do, DON'T forget the pilot bushing.
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Old 11-27-2010, 04:05 PM
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The Saginaw can easily handle anything under 350 hp. They came stock in Camaros and even early Vettes. Don't put one behind a big block or anything with big hp if you intend to do any racing. I have one behind the early hemi in my deuce and it will easily handle the hp and torque for normal and even spirited street driving because its a light car. Big hp, and a heavy car will spell disaster for the Saginaw. Best go with the Muncie if that's what you intend to run.

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Old 11-27-2010, 04:10 PM
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I've never seen a Saganaw in a Vette. I've seen the cast iron case T10s in them, but not the Saganaw.
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Old 11-27-2010, 06:31 PM
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Saginaw

Well guys it wont be over 375 and probably closer to 350 HP side of it , Its going in a 78 Caprice Aero Coupe , 10 bolt Eaton posi and 456 gear set , wont be much of a HWY cruiser just BLVD cruiser, and any advise is always welcome


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Jim

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Old 11-27-2010, 07:17 PM
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Quote:
Originally Posted by big gear head
I've never seen a Saganaw in a Vette. I've seen the cast iron case T10s in them, but not the Saganaw.
You're correct.....My bad. No Corvettes. They did came in Camaros, Chevelles, Monzas, Novas, GMC Caballaros, Pontiac Firebird, TransAm, Sunbird, Sunfire, early Lemans, Tempests, and a host of Buicks and Oldsmobiles. Alll applications were small block V8's 350 cu. in or smaller, inline and V6's, and in some cases 4 cylinders.
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Old 11-27-2010, 07:53 PM
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They were also used in the G body cars.
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Old 11-28-2010, 02:28 AM
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Quote:
Originally Posted by Centerline
You're correct.....My bad. No Corvettes. They did came in Camaros, Chevelles, Monzas, Novas, GMC Caballaros, Pontiac Firebird, TransAm, Sunbird, Sunfire, early Lemans, Tempests, and a host of Buicks and Oldsmobiles. Alll applications were small block V8's 350 cu. in or smaller, inline and V6's, and in some cases 4 cylinders.

My 76 edition CHILTONS notes Saginaw 4-speeds were also used in 69-76 Corvettes; probably even later, but I don't have any later books. The Saginaw 4-speed of the original poster is going to be the light weight version, Vega/Monza style, with narrower gears. Take it easy, don't beat on it, and drive it like grandma, and it will last a while.
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Old 11-28-2010, 09:00 AM
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Quote:
Originally Posted by big gear head
I've never seen a Saganaw in a Vette. I've seen the cast iron case T10s in them, but not the Saganaw.
Just helped a friend do some work on a 74 Vette that was a Mecum Auction purchase. Replaced both the original engine and trans. The old trans was indeed a Saginaw 4 speed.

Vince
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Old 11-28-2010, 09:54 AM
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Quote:
Originally Posted by 302 Z28
Just helped a friend do some work on a 74 Vette that was a Mecum Auction purchase. Replaced both the original engine and trans. The old trans was indeed a Saginaw 4 speed.

Vince
That's interesting. When big gear head mentioned he had never seen one in a Vette I rechecked my documentation and it didn't list any. I thought I had been told some did make it in Vettes but couldn't find the info. I guess this is one of the VERY rare cases where my memory was better than my documentation. At my age that almost NEVER happens.


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Old 11-28-2010, 03:38 PM
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Notice I didn't say that they were never installed in a Vette, just that I had never seen one. I guess I just haven't been under the right Vette yet.
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Old 12-16-2010, 11:29 PM
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3 rings indicate a 3.50:1 low gear, which has the least torque capacity of the bunch. Don't beat on it too hard, especially in low.
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