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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


transmission?

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transmission? Empty transmission?

Post by MallyMal S-3 Tue Jul 14, 2009 12:51 pm

what kind of transmission came in 1975 Gunas? from my understanding its either a th350 or a th400...

thanks
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Post by Limey SE Tue Jul 14, 2009 2:32 pm

that would depend on the motor that was installed in the car at time of manufacture

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Post by The Dude Tue Jul 14, 2009 3:15 pm

To my knowledge there was 3 transmissions available:

A 3 speed manual option M15 (probably 6 cylinder cars only) - 4,569 sold
A TH350 for smaller displacements option M38 -567,000 sold
A TH400 for large displacement engines/tow package vehicles, optional, etc. option M40 - 4,263 sold

There are no records of how many of each were sold in a specific combination, so these # are total 1975 Chevelle options, not just Laguna. Hope this helps.
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Post by Limey SE Tue Jul 14, 2009 4:11 pm

A 3 speed manual option M15 (probably 6 cylinder cars only) - 4,569 sold


mine was a 350 c.i. 3 speed manual on the floor from factory a rare bird it was

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Post by The Dude Tue Jul 14, 2009 4:18 pm

Hence the reason I put (probably only 6 cylinder cars). No use trying to find one with a V8, they seem to be rare.

Are you talking about your Laguna or another car? Lucky.
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Post by Limey SE Tue Jul 14, 2009 4:27 pm

no the maligoon that went by bye because of the frame issues it had, the one i have now is a auto on floor car w/tilt wheel..........................the blue one when it was lifted onto the trailer the rear quarters fell of the car LMAO

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Post by MallyMal S-3 Thu Jul 16, 2009 12:28 pm

im assuming if im working with a 6.6L/400 id have the th400 correct?
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Post by JB2wheeler Thu Jul 16, 2009 1:35 pm

Well, I am too old to know what a 6.6 is, but my 74 Elky came with a 400 cube small block and a TH350 trans new from the factory. I still have the 400 with 43,000 original miles on it sitting in my garage. JB
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Post by The Dude Thu Jul 16, 2009 2:07 pm

Crawl under the car & look at the transmission pan.

If it looks like a square with one corner cut off, it's a TH350.

TH400 kind of looks like it should be the shape of a state or something, lol. I believe it also has 2 dimples in the bottom of the pan.
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Post by MallyMal S-3 Thu Jul 16, 2009 2:14 pm

haha which state exactly, jk but ok thats some good stuff. i'll check that out
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Post by The Dude Thu Jul 16, 2009 2:16 pm

Actually kind of looks like Texas or the bottom leg of Texas if I remember right.
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Post by MallyMal S-3 Thu Jul 16, 2009 3:53 pm

lol really? i was joking but i'll keep my eye out for the lone star.
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Post by JB2wheeler Thu Jul 16, 2009 10:31 pm

About half way down the page at this link http://www.400raptor.com/ you will find trans oil pans for the 350 and 400. That will show you what shape to look for. JB
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Post by 1973 454 MONTE Thu Jul 16, 2009 10:39 pm

Rago wrote:Crawl under the car & look at the transmission pan.

If it looks like a square with one corner cut off, it's a TH350.

TH400 kind of looks like it should be the shape of a state or something, lol. I believe it also has 2 dimples in the bottom of the pan.

I think the th400 pan looks like a boat
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Post by MallyMal S-3 Thu Jul 16, 2009 11:28 pm

yup pretty sure its a th350
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Post by The Dude Fri Jul 17, 2009 12:18 am

Pretty easy to tell when you get under it.
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