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Old 11-29-2015, 02:50 AM   #1
East_Bound
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Factory Transmission in 71' Custom Camper

What's up guys -

I am curious as to what transmission is in my 1971 C20 Custom Camper. 350CI with a 3 Speed Auto on the column. TH400? Thanks in advance.
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Old 11-29-2015, 03:00 AM   #2
jocko
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Re: Factory Transmission in 71' Custom Camper

th350
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Old 11-29-2015, 03:13 AM   #3
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Re: Factory Transmission in 71' Custom Camper

or at least that's what it would have had originally - someone could have swapped in a th400 over they years.
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Old 11-29-2015, 12:16 PM   #4
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Re: Factory Transmission in 71' Custom Camper

Great, thanks!

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Originally Posted by jocko View Post
or at least that's what it would have had originally - someone could have swapped in a th400 over they years.
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Old 11-29-2015, 06:40 AM   #5
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Re: Factory Transmission in 71' Custom Camper

Look at the transmission pan, if its square with a corner cut at a 45 degree its a 350.(should be a 350 unless its been changed out i think) The thread below will help.

http://67-72chevytrucks.com/vboard/s...d.php?t=554460
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Old 11-29-2015, 12:18 PM   #6
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Re: Factory Transmission in 71' Custom Camper

Okay, that helps a lot, thanks

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Originally Posted by swamp rat View Post
Look at the transmission pan, if its square with a corner cut at a 45 degree its a 350.(should be a 350 unless its been changed out i think) The thread below will help.

http://67-72chevytrucks.com/vboard/s...d.php?t=554460
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Old 11-29-2015, 08:03 AM   #7
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Re: Factory Transmission in 71' Custom Camper

pics... OOPS!!! I should have opened Swamp Rats thread...
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Old 11-29-2015, 12:19 PM   #8
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Re: Factory Transmission in 71' Custom Camper

Thanks for the diagram, that's exactly what I need!

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pics... OOPS!!! I should have opened Swamp Rats thread...
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Old 11-29-2015, 06:38 PM   #9
hugger6933
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Re: Factory Transmission in 71' Custom Camper

I would have thought being a 3/4 ton it would be a TH400. Is that not the case? I know my truck was /is a th400 but then again it don't count as it was a big block truck.
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Old 11-29-2015, 06:47 PM   #10
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Re: Factory Transmission in 71' Custom Camper

TH 400 would be with a big block, 350 with a small block. 3/4 ton does not make a difference.
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